Search results: Found 2

Listing 1 - 2 of 2
Sort by
Siloxane-Based Polymers

Author:
ISBN: 9783038971252 / 9783038971269 Year: Pages: 188 DOI: 10.3390/books978-3-03897-126-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
License:

Loading...
Export citation

Choose an application

Abstract

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

POSS-Based Polymers

Author:
ISBN: 9783039219940 / 9783039219957 Year: Pages: 310 DOI: 10.3390/books978-3-03921-995-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
License:

Loading...
Export citation

Choose an application

Abstract

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

Listing 1 - 2 of 2
Sort by
Narrow your search

Publisher

MDPI - Multidisciplinary Digital Publishing Institute (2)


License

CC by-nc-nd (2)


Language

eng (2)


Year
From To Submit

2019 (2)