Macromolecular Materials and Engineering
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Additive Processing of Polymers
Macromolecular Materials and Engineering - Tập 293 Số 10 - Trang 799-809 - 2008
AbstractAdditive processing technologies are rapidly growing in all fields of
application. A large number of scientific publications were investigated in
order to provide a comprehensive overview of rapid prototyping methods for
polymers and their applications, of currently available materials and research
concerning additive processes. The current problems of additive processes are
described, tog...
Natural Polymers from Biomass Resources as Feedstocks for Thermoplastic Materials
Macromolecular Materials and Engineering - Tập 304 Số 5 - 2019
AbstractWith the objective of a more sustainable circular economy, one long‐term
goal is the utilization of renewable resources as feedstock for the production
of polymer‐based materials. In order to successfully process such materials
using existing industrial‐scale technologies or even recycling processes, the
natural polymers must have thermoplastic properties. With only a few exceptions,
natur...
Characterization of Thiol‐Ene Crosslinked PEG Hydrogels
Macromolecular Materials and Engineering - Tập 298 Số 6 - Trang 699-703 - 2013
AbstractThe properties of synthetic hydrogels can be tuned to address the needs
of many tissue‐culture applications. This work characterizes the swelling and
mechanical properties of thiol‐ene crosslinked PEG hydrogels made with varying
prepolymer formulations, demonstrating that hydrogels with a compressive modulus
exceeding 600 kPa can be formed. The amount of peptide incorporated into the
hydro...
Porous Superabsorbent Hydrogel Composites: Synthesis, Morphology and Swelling Rate
Macromolecular Materials and Engineering - Tập 289 Số 7 - Trang 653-661 - 2004
AbstractSummary: Novel porous hydrogel composites with very high swelling
capacity and enhanced rate of water absorption were synthesized in aqueous media
at room temperature under normal atmospheric conditions. The porosity was
induced through either foaming conducted in the course of polymerization or
non‐solvent dewatering of the as‐synthesized gels. Kaolin was incorporated as an
inorganic comp...
Polypyrrole‐Fe3O4 Magnetic Nanocomposite Prepared by Ultrasonic Irradiation
Macromolecular Materials and Engineering - Tập 291 Số 1 - Trang 68-74 - 2006
AbstractSummary: Ultrasonic irradiation was employed to prepare polypyrrole
(PPY)/Fe3O4 magnetic nanocomposite by chemical oxidative polymerization of
pyrrole in the presence of Fe3O4 nanoparticles. This approach can solve the
problem in the dispersion and stabilization of inorganic nanoparticles in
polymer. The structure and properties of PPY/Fe3O4 nanocomposite were
characterized by TEM, XPS, FT...
Morphology and Thermomechanical Properties of Melt‐Mixed Polyoxymethylene/Polyhedral Oligomeric Silsesquioxane Nanocomposites
Macromolecular Materials and Engineering - Tập 295 Số 9 - Trang 846-858 - 2010
AbstractThe influence of the functionalization of fully condensed POSS cages on
the properties of POM‐based nanocomposites is studied. POSS with different
organic substituents [glycidylethyl, aminopropylisobutyl, and poly(ethylene
glycol)] are taken into account and melt mixed with POM. Good dispersion was
achieved upon the addition of amino functionalized POSS, leading to an increase
on the therm...
UV Curing of Organic‐Inorganic Hybrid Coatings Containing Polyhedral Oligomeric Silsesquioxane Blocks
Macromolecular Materials and Engineering - Tập 293 Số 8 - Trang 700-707 - 2008
AbstractHybrid nanocomposite coatings were prepared by the UV‐curing technique
with a methacrylic oligomer and multifunctional methacrylic polyhedral
oligomeric silsesquioxane blocks (POSS®). The results obtained from the
polyhedral compounds were compared with those of a disordered framework obtained
by the condensation of a silica precursor (MEMO). The inorganic domains
generated during synthesi...
Chemical Recycling of Poly(ethylene terephthalate)
Macromolecular Materials and Engineering - Tập 292 Số 2 - Trang 128-146 - 2007
AbstractThis paper covers the recent research carried out by the authors on the
chemical recycling of poly(ethylene terephthalate) (PET) taken from
post‐consumer soft‐drink bottles. The chemical recycling techniques used are
critically reviewed and the authors' contribution is highlighted. Hydrolysis in
either an alkaline or acid environment was employed in order to recover pure
terephthalic acid ...
Effect of the Sulfated Zirconia Nanostructure Characteristics on Physicochemical and Electrochemical Properties of SPEEK Nanocomposite Membranes for PEM Fuel Cell Applications
Macromolecular Materials and Engineering - Tập 303 Số 5 - 2018
AbstractThis study expresses that the characteristics of sulfated zirconia (SZ)
nanostructure in sulfonated poly(ether ether ketone) (SPEEK)‐based membranes is
the key to optimize their properties for fuel cell applications. Two types of SZ
treating in different thermal conditions are produced by precipitation and
analyzed by X‐ray diffraction, thermogravimetric analysis, Fourier transform
infrare...
On Processing and Impact Deformation Behavior of High Density Polyethylene (HDPE)–Calcium Carbonate Nanocomposites
Macromolecular Materials and Engineering - Tập 294 Số 2 - Trang 141-151 - 2009
AbstractDifferent processing approaches were adopted to obtain the best
combination of strength and toughness. The approach that yielded superior
properties was examined in detail to study the mechanical response of nanoscale
calcium carbonate‐reinforced high density polyethylene in conjunction with
unreinforced high density polyethylene. The reinforcement of high density
polyethylene with nanosca...
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