Results 11 to 20 of about 131,598 (304)

Poly(dimethylsiloxane)-poly(ethyleneoxide)-heparin block copolymers. I. Synthesis and characterization [PDF]

open access: yes, 1988
Amphiphilic block copolymers containing poly(dimethylsiloxane), poly(ethylene oxide), and heparin (PDMS-PEO-Hep) have been prepared via a series of coupling reactions using functionalized prepolymers, diisocyanates, and derivatized heparins.
Agarwal   +40 more
core   +11 more sources

Fabrication of Bioactive Surfaces by Functionalization of Electroactive and Surface-Active Block Copolymers

open access: yesBioengineering, 2014
Biofunctional block copolymers are becoming increasingly attractive materials as active components in biosensors and other nanoscale electronic devices.
Omotunde Olubi   +5 more
doaj   +1 more source

Crosslinked polyurethanes based on hyperbranched polymers [PDF]

open access: yesHemijska Industrija, 2008
In this paper, two samples of polyurethane (PU) crosslinked with hydroxy -functonal hyperbranched aliphatic polyester of the second pseudo generation were investigated.
Vuković Jasna   +3 more
doaj   +1 more source

Probing the mucoadhesive interactions between porcine gastric mucin and some water-soluble polymers [PDF]

open access: yes, 2015
This study investigates the structural features of porcine gastric mucin (PGM) in aqueous dispersions and its interactions with water-soluble polymers (poly(acrylic acid) (PAA), poly(methacrylic acid) (PMAA), poly(ethylene oxide), and poly(ethylene ...
Albarkah, Yasser R.   +2 more
core   +1 more source

Chemical and Thermal Evaluation of Commercial and Medical Grade PEEK Sterilization by Ethylene Oxide [PDF]

open access: yesMaterials Research, 2016
Many polymers have been used as biomaterials due to their physicochemical characteristics and structural versatility. However, usage on the human body requires sterilization in order to prevent microbial contamination and diminish the risk of rejection ...
Michele Savaris   +4 more
doaj   +2 more sources

Chemically Specific Dynamic Bond Percolation Model for Ion Transport in Polymer Electrolytes [PDF]

open access: yes, 2015
We introduce a coarse-grained approach for characterizing the long-timescale dynamics of ion diffusion in general polymer electrolytes using input from short molecular dynamics trajectories.
Miller, Thomas F., III   +3 more
core   +2 more sources

Vibrational dynamics of solid poly(ethylene oxide) [PDF]

open access: yes, 2003
Molecular dynamics (MD) simulations of crystalline poly(ethylene oxide) (PEO) have been carried out in order to study its vibrational properties. The vibrational density of states has been calculated using a normal mode analysis (NMA) and also through ...
Balasubramanian, S., Krishnan, M.
core   +2 more sources

Insights into the Nature of Synergistic Effects in Proton-Conducting 4,4−1H,1H-Bitriazole-Poly(ethylene oxide) Composites [PDF]

open access: yes, 2009
A nitrogen-containing heterocycle (NCH), 4,4-1H-1H-bi-1,2,3-triazole (bitriazole), capable of mimicking the hydrogen bonding of water in the solid state is synthesized and its ability to conduct protons in the presence of poly(ethylene oxides) under ...
Alabi, Christopher A.   +3 more
core   +1 more source

Nanocomposites with Liquid-Like Multiwalled Carbon Nanotubes Dispersed in Epoxy Resin without Solvent Process

open access: yesInternational Journal of Polymer Science, 2014
Liquid-like multiwall carbon nanotubes (MWNTs) were prepared with as-received carboxylic MWNTs-COOH and poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (PEO-b-PPO-b-PEO) through hydrogen bonding.
Xi Zhang   +3 more
doaj   +1 more source

Phase Behavior and Structure of Poloxamer Block Copolymers in Protic and Aprotic Ionic Liquids

open access: yesMolecules, 2023
Ionic liquids are promising media for self-assembling block copolymers in applications such as energy storage. A robust design of block copolymer formulations in ionic liquids requires fundamental knowledge of their self-organization at the nanoscale. To
Aikaterini Tsoutsoura   +2 more
doaj   +1 more source

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