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ISBN: 9783038421610 9783038421627 Year: Pages: 254
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2016-05-12 11:55:09
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Wine Fermentation

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ISBN: 9783038976745 Year: Pages: 176 DOI: 10.3390/books978-3-03897-675-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biotechnology --- Technology (General)
Added to DOAB on : 2019-04-05 11:07:22
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This book is a printed edition of the Special Issue Wine Fermentation that was published in Fermentation

Nanoparticle-Reinforced Polymers

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ISBN: 9783039212835 9783039212842 Year: Pages: 334 DOI: 10.3390/books978-3-03921-284-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-08-28 11:21:27
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This book, a collection of 12 original contributions and 4 reviews, provides a selection of the most recent advances in the preparation, characterization, and applications of polymeric nanocomposites comprising nanoparticles. The concept of nanoparticle-reinforced polymers came about three decades ago, following the outstanding discovery of fullerenes and carbon nanotubes. One of the main ideas behind this approach is to improve the matrix mechanical performance. The nanoparticles exhibit higher specific surface area, surface energy, and density compared to microparticles and, hence, lower nanofiller concentrations are needed to attain properties comparable to, or even better than, those obtained by conventional microfiller loadings, which facilitates processing and minimizes the increase in composite weight. The addition of nanoparticles into different polymer matrices opens up an important research area in the field of composite materials. Moreover, many different types of inorganic nanoparticles, such as quantum dots, metal oxides, and ceramic and metallic nanoparticles, have been incorporated into polymers for their application in a wide range of fields, ranging from medicine to photovoltaics, packaging, and structural applications.

Keywords

chemical and physical interface --- surface modification of silica --- latex compounding method --- silica/NR composite --- thermoresponsive hyperbranched polymer --- gold nanoparticles --- in-situ synthesis --- colorimetric sensor --- silver ions --- Ag nanoparticles --- catalysis --- composite membrane --- separation --- SiO2 microspheres --- inorganic nanotubes --- PHBV --- nanomaterials --- morphology --- crystallization kinetics --- nanocomposite --- conductive polymer --- solar cell --- graphene --- graphene oxide --- power-conversion efficiency --- electrode --- active layer --- interfacial layer --- layered structures --- polymer-matrix composites --- mechanical properties --- gas barrier properties --- N-isopropylacrylamide --- N-isopropylmethacrylamide --- ratiometric temperature sensing --- FRET --- chain topology --- selective adsorption --- polymer-NP interface --- organic light-emitting diodes (OLEDs) --- PFO/MEH-PPV hybrids --- SiO2/TiO2 nanocomposite --- optoelectronic properties --- fluorescent assay --- fluorescence resonance energy transfer --- conjugated polymer nanoparticles --- gold nanoparticles --- melamine --- polymers --- composites --- carbon nanoparticles --- nano-hybrids --- nanocomposites --- sol–gel --- in situ synthesis --- metal oxides --- reduced graphene oxide --- graphene-like WS2 --- bismaleimide --- mechanical properties --- carrier transport --- polypropylene nanocomposite --- molecular chain motion --- electrical breakdown --- electric energy storage --- thermoplastic nanocomposite --- polyethylene --- power cable insulation --- electrical property --- structure-property relationship --- hybrid hydrogels --- nanoparticles --- nanosheets --- clays --- polymers --- adhesion --- n/a

Advanced Flame Retardant Materials

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ISBN: 9783039283507 9783039283514 Year: Pages: 190 DOI: 10.3390/books978-3-03928-351-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Science (General)
Added to DOAB on : 2020-04-07 23:07:09
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Recent disasters caused by the spread of fire in buildings and in transportations remind us of the importance of fire protection. Using flame-retardant materials is one important element of the firefighting strategy, which aims to prevent fire development and propagation. These materials are used in different applications, such as in textiles, coatings, foams, furniture, and cables. The development of more efficient and environmentally friendly flame-retardant additives is an active multidisciplinary approach that has attracted a great deal of interest. Studies have aimed at the development of new, sustainable, and flame-retardant additives/materials, providing high performance and low toxicity. Also studied were their properties during ageing and recycling, as well as modeling physical and chemical processes occuring before ignition and during their combustion. The development of sustainable flame retardants and understanding their modes of action provide a strong link between these topics and cover many fields from organic chemistry, materials engineering, and toxicology, to physics and mathematics.

Sol-Gel Chemistry Applied to Materials Science

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ISBN: 9783039213535 9783039213542 Year: Pages: 216 DOI: 10.3390/books978-3-03921-354-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-12-09 11:49:15
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Sol–gel technology is a contemporary advancement in science that requires taking a multidisciplinary approach with regard to its various applications. This book highlights some applications of the sol–gel technology, including protective coatings, catalysts, piezoelectric devices, wave guides, lenses, high-strength ceramics, superconductors, synthesis of nanoparticles, and insulating materials. In particular, for biotechnological applications, biomolecules or the incorporation of bioactive substances into the sol–gel matrix has been extensively studied and has been a challenge for many researchers. Some sol–gel materials are widely applied in light-emitting diodes, solar cells, sensing, catalysis, integration in photovoltaic devices, and more recently in biosensing, bioimaging, or medical diagnosis; others can be considered excellent drug delivery systems. The goal of an ideal drug delivery system is the prompt delivery of a therapeutic amount of the drug to the proper site in the body, where the desired drug concentration can be maintained. The interactions between drugs and the sol–gel system can affect the release rate. In conclusion, the sol–gel synthesis method offers mixing at the molecular level and is able to improve the chemical homogeneity of the resulting composite. This opens new doors not only regarding

Keywords

sol-gel method --- Fourier transform infrared spectroscopy (FTIR) analysis --- bioactivity --- biocompatibility --- sol–gel method --- organic-inorganic hybrids --- chlorogenic acid --- cytotoxicity --- biocompatibility --- silsesquioxanes --- thiol-ene click reaction --- in situ water production --- hydrophobic coatings --- cotton fabric --- paper --- NMR --- wettability --- sol-gel --- hollow sphere --- 1D structure --- sol-gel --- thin-disk laser --- Yb-doped glasses --- aluminosilicate glasses --- photoluminescence --- ultrasonic spray deposition --- tungsten oxide --- lithium lanthanum titanium oxide --- conformal coating --- Li-ion batteries --- sol-gel technique --- biomaterials --- cell proliferation --- cell cycle --- one transistor and one resistor (1T1R) --- organic thin-film transistor (OTFT) --- resistive random access memory (RRAM) --- sol-gel --- lithium-ion battery --- LiMnxFe(1?x)PO4 --- carbon coating --- pseudo-diffusion coefficient --- potential step voltammetry --- electrochemical impedance spectroscopy --- sol-gel --- oxyfluoride glass-ceramics --- nanocrystal --- optical properties --- sol-gel method --- SiO2–based hybrids --- poly(?-caprolactone) --- TG-DSC --- TG-FTIR --- X-ray diffraction analysis --- computer-aided design (CAD) --- mechanical analysis --- finite element analysis (FEA) --- composites --- organic–inorganic hybrid materials --- biomedical applications --- metal oxides --- multi-layer --- surface plasmon resonance --- optical sensors --- computer-aided design (CAD) --- mechanical analysis --- finite element analysis (FEA) --- composites --- hybrid materials --- biomedical applications

Siloxane-Based Polymers

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ISBN: 9783038971252 9783038971269 Year: Pages: 188 DOI: 10.3390/books978-3-03897-126-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
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This book, a collection of 12 original contributions and 4 reviews, provides a selection of the most recent advances in the preparation, characterization, and applications of polymeric nanocomposites comprising nanoparticles. The concept of nanoparticle-reinforced polymers came about three decades ago, following the outstanding discovery of fullerenes and carbon nanotubes. One of the main ideas behind this approach is to improve the matrix mechanical performance. The nanoparticles exhibit higher specific surface area, surface energy, and density compared to microparticles and, hence, lower nanofiller concentrations are needed to attain properties comparable to, or even better than, those obtained by conventional microfiller loadings, which facilitates processing and minimizes the increase in composite weight. The addition of nanoparticles into different polymer matrices opens up an important research area in the field of composite materials. Moreover, many different types of inorganic nanoparticles, such as quantum dots, metal oxides, and ceramic and metallic nanoparticles, have been incorporated into polymers for their application in a wide range of fields, ranging from medicine to photovoltaics, packaging, and structural applications.

Keywords

fabrication --- multielectrode array (MEA) --- PDMS --- PDMS etching --- plateau-shaped electrode --- recessed electrode --- spinal cord signal recording --- underexposure --- organosilane --- quartz microcrystal --- encapsulant --- refractive index --- thermal conductivity --- poly(dimethylsiloxanes) --- surface modification --- nanosilica --- diethyl carbonate --- carbon content --- morphology --- coatings --- fillers --- hybrid hydrogel --- MAPOSS --- mechanical properties --- swelling --- drug release --- dental resin --- methacryl POSS --- shrinkage --- hardness --- scratch resistance --- ceramizable silicone rubber --- borate --- halloysite --- composite --- ceramizable mechanism --- polysiloxanes --- mortar --- basalt fibre --- roughness --- surface free energy --- poly(ethylene glycol) (PEG) --- hydrophilic --- non-releasable --- polydimethylsiloxane --- coatings --- cross-linking --- surface --- amphiphilic --- anti-bioadhesion --- hyperbranched poly(methylhydrosiloxanes) --- hydrolytic polycondensation --- 29Si-NMR --- topology of polysiloxane chains --- polyhedral oligomeric silsesquioxanes --- high molecular weight --- nanoparticles --- PDMS --- sugar templating process --- 3D porous network --- thermal stability --- TG-FTIR --- X-ray (Micro-CT) microtomography --- sol-gel --- hybrids --- chlorogenic acid --- bioactivity --- FTIR --- TG --- polysiloxanes --- theranostics --- drug delivery --- nanomedicine --- PDMS --- silicon --- ultraviolet (UV) curable coatings --- low surface energy materials --- fluorinated siloxane resin

Novel Non-Precious Metal Electrocatalysts for Oxygen Electrode Reactions

Authors: --- ---
ISBN: 9783039215409 9783039215416 Year: Pages: 190 DOI: 10.3390/books978-3-03921-541-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2019-12-09 11:49:16
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Research on alternative energy harvesting technologies, conversion and storage systems with high efficiency, cost-effective and environmentally friendly systems, such as fuel cells, rechargeable metal-air batteries, unitized regenerative cells, and water electrolyzers has been stimulated by the global demand on energy. The conversion between oxygen and water plays a key step in the development of oxygen electrodes: oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), processes activated mostly by precious metals, like platinum. Their scarcity, their prohibitive cost, and declining activity greatly hamper large-scale applications. This issue reports on novel non-precious metal electrocatalysts based on the innovative design in chemical compositions, structure, and morphology, and supports for the oxygen reaction.

Polymeric Materials: Surfaces, Interfaces and Bioapplications

Authors: --- --- --- --- et al.
ISBN: 9783038979623 9783038979630 Year: Pages: 342 DOI: 10.3390/books978-3-03897-963-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2019-06-26 08:44:06
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This book collects the articles published in the Special Issue “Polymeric Materials: Surfaces, Interfaces and Bioapplications”. It shows the advances in polymeric materials, which have tremendous applications in agricultural films, food packaging, dental restoration, antimicrobial systems, and tissue engineering. These polymeric materials are presented as films, coatings, particles, fibers, hydrogels, or networks. The potential to modify and modulate their surfaces or their content by different techniques, such as click chemistry, ozonation, breath figures, wrinkle formation, or electrospray, are also explained, taking into account the relationship between the structure and properties in the final application. Moreover, new trends in the development of such materials are presented, using more environmental friendly and safe methods, which, at the same time, have a high impact on our society.

Keywords

corn stalk fiber --- friction composite --- friction and wear --- worn surface morphology --- antifouling coatings --- biofouling --- natural biofilms --- single-stranded conformation polymorphism --- polydimethylsiloxane --- multidimensional scale analysis --- antimicrobial coatings --- porous surfaces --- breath figures --- antimicrobial polymer --- coatings --- hydrogel --- protein-repellent polymer --- surface-attached polymer network --- polymer cross-linking --- alginate modification --- calcium chloride --- microparticles --- spray drying --- prolonged drug release --- gradient wrinkles --- UV/ozone --- irradiance --- polymeric composites --- bonding agents --- antibacterial --- oral biofilms --- periodontal pathogens --- caries inhibition --- recycling --- polypropylene --- biodegradable polymers --- degradation --- inmiscibility --- hemicelluloses --- chitosan --- composite films --- oxygen barrier property --- food packaging --- nanosecond laser surface modification --- ABS (Acrylonitrile-Butadiene-Styrene) --- surface wettability --- superhydrophobic --- superhydrophilic --- poly(x-chlorostyrene) --- honeycomb --- breath figures --- conformational entropy --- spinal anatomy --- intervertebral disc --- degenerative disc disease --- herniated disc --- spinal fusion --- total disc replacement --- tissue engineering --- Electrically conductive polymers --- Electroactive biomaterials --- Electrical stimulation --- Smart composites --- Bioelectric effect --- Drug delivery --- Artificial muscle --- bio-based --- fossil --- hybrids --- blends --- packaging --- bio-based polymers --- antimicrobial --- biodegradable --- sustainable --- eco-friendly --- graphene oxide --- chitosan --- composites --- scaffolds --- tissue engineering --- surface modification/functionalization --- surface segregation --- micro- and nanopatterned films --- blends and (nano)composites --- coatings --- surface wettability --- stimuli-responsive materials/smart surfaces --- bioapplications

Trust Management: Key Factor of the Sustainable Organizations Embedded in Network

Authors: ---
ISBN: 9783039212330 9783039212347 Year: Pages: 396 DOI: 10.3390/books978-3-03921-234-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Economics
Added to DOAB on : 2019-08-28 11:21:27
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Nowadays, trust is an important determinant in the development of modern organizations. Not only is it becoming an increasingly important element of relationships between entities, but, above all, it positively influences the building of an organization's intellectual capital. This capital can be defined in different ways, but its definition always references elements that determine the potential of sustainable organizations, often in human, social, relational, organizational, and innovation dimensions. Trust is increasingly becoming the key determinant of this capital (Ko?uch, Lenart-Gansiniec, 2017). Trust also has a number of different definitions. However, the basis of many of these definitions is the building of relationships focused on developing some kind of individual or inter-organizational link. Organizational trust is a complicated concept, and it is the basis of all organized activities performed by people in the organization, largely because trust is needed to develop relationships with integrity and commitment. Thus, it is interesting to study the relationship between trust and the building of the intellectual capital of sustainable organizations. Indeed, intellectual capital plays a special role here. It is a guide and a platform for achieving not only a competitive advantage for the sustainable organization, but also a source of value creation in the short and long term. Thus, this strategic hybrid, composed of a business model, strategy, and business processes, is favorable to the development of intellectual capital (Jab?o?ski 2017). Trust is an element that ties this capital to relationships in business. Moreover, it has an integrated character (R.C. Mayer, J. H. Davis, F. D. Schoorman 1995). Assuming that, nowadays, the network paradigm is becoming increasingly important, it is worth asking how the mechanism of building trust-based intellectual capital in a sustainable organization functions as its key asset in the network environment.

Keywords

trust --- distrust --- control --- project success --- structural equation modeling (SEM) --- trust --- trust management --- logistics service providers --- supply chain management --- collaboration --- trust --- antibiotic resistance --- antibiotics --- cooperation --- large-scale collective action --- Sweden --- coordinating behavior --- trust management --- reciprocity types --- reciprocity-based trust --- inter-organizational exchange relationships --- sustainable relationships --- consumer trust --- CSR --- advertising --- ethical advertising --- shockvertising --- consumer behavior --- apology --- denial --- penance --- opportunistic behaviors --- trust repair --- subcontracting --- scenario-based experiments --- sustainability --- trust --- distress --- transport services --- road freight transport --- modal shift potential --- paradigm shift --- modeling --- prediction --- General Discriminant Analysis --- trust --- international joint venture --- third-country relocation --- foreign direct investment --- asset specificity --- institutional theory --- public collaborative networks --- multilevel research --- trust --- cooperation --- competition --- paradoxes --- trust --- M&A sustainability --- performance --- start-ups --- retained autonomy --- mixed-method research --- interpersonal trust --- sustainable organizations --- competences --- relations --- cooperation --- trust --- quality culture --- universities --- higher education institutions --- conceptual model --- trust --- collaboration --- virtual teams --- integrity --- ability --- online --- strategic hybrids --- business model --- strategy --- business processes --- strategic projects --- water supply companies --- trust --- trustworthiness --- distrust --- water cooperation --- competition --- complexity --- deep uncertainty --- risk perception --- Nzoia river basin --- water policy gaming --- public management --- public-social partnership --- public value --- co-innovation --- sustainability --- trust --- creative industry --- networking --- stakeholders --- DAG scheduling --- trusted entities --- heterogeneous --- MCTS --- cultural routes --- trust --- cooperation networks --- cultural heritage management

POSS-Based Polymers

Author:
ISBN: 9783039219940 9783039219957 Year: Pages: 310 DOI: 10.3390/books978-3-03921-995-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
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The combination of functional polymers with inorganic nanostructured compounds has become a major area of research and technological development owing to the remarkable properties and multifunctionalities deriving from their nano and hybrid structures. In this context, polyhedral oligomeric silsesquioxanes (POSSs) have increasing importance and a dominant position with respect to the reinforcement of polymeric materials. Although POSSs were first described in 1946 by Scott, these materials, however, have not immediately been successful if we consider that, starting from 1946 and up to 1995, we find in the literature 85 manuscripts regarding POSSs; which means that less than two papers per year were published over 50 years. Since 1995, we observe an exponential growth of scientific manuscripts concerning POSSs. It is changing from an annual average of 20 manuscripts for the period 1995–2000 to an annual average of about 400 manuscripts, with an increase of 2800%. The introduction of POSSs inorganic nanostructures into polymers gives rise to polymer nanostructured materials (PNMs) with interesting mechanical and physical properties, thus representing a radical alternative to the traditional filled polymers or polymer compositions.

Keywords

direct synthesis --- grafting synthesis --- mercapto-modified --- bridged silsesquioxane --- polyhedral oligomeric silsesquioxanes --- POSS --- composites --- thermal stability --- fluorescent sensors --- nitroaromatic explosives --- polyhedral oligomeric silsesquioxane-based ionic liquids --- self-assembly behaviors --- thiol-ene ‘click’ reaction --- siloxane-silsesquioxane resins --- polypropylene --- thermogravimetry --- cone calorimeter tests --- flame-retardant mechanism --- POSS --- filler --- low refractive material --- thermal stability --- fluoropolymer --- polyhedral oligomeric silsesquioxane (POSS) --- double-decker-shaped silsesquioxane (DDSQ) --- polyimide --- thermal stability --- dielectric constant --- poly(?-caprolactone) nanocomposite --- POSS nanoparticles --- dispersion --- morphology --- thermal properties --- mechanical properties --- surface properties --- phthalonitrile polymers --- phthalonitrile-polyhedral oligomeric silsesquioxane copolymers --- cyanate ester --- blends --- thermal properties --- POSS-based copolymer --- graphene oxide --- flame retardant --- epoxy resin --- giant surfactant --- thiol–ene “click” reaction --- polyhedral oligomeric silsesquioxane (POSS) --- poly(?-caprolactone) --- aqueous self-assembly --- POSS --- ridgid polyurethane foams --- mechanical properties --- cellular structure --- bi-functional POSS --- hydrophobic modification --- thermoplastic polyurethane --- mechanical performance --- silsesquioxanes --- optoelectronics --- OLEDs --- Monomethacryloxy POSS --- lauryl methacrylate --- polymerization kinetics --- anchor effect --- octa-ammonium POSS --- sodium alginate --- hydrogels --- temperature responsiveness --- Octavinyl-POSS --- organic-inorganic crosslinking --- Si@C anode --- lithium ion battery --- mechanism analysis --- monodisperse --- nanocomposites --- damping --- POSS --- liquefied --- benzoxazine --- POSS --- organic-inorganic hybrids --- epoxy resin --- thermal properties --- flame retardancy --- n/a

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