Results 221 to 230 of about 55,802 (258)

Preparation of semi-interpenetrating polymer networks composed of chitosan and poloxamer

International Journal of Biological Macromolecules, 2006
Through semi-interpenetration of polymer networks with poloxamer, mechanical properties of chitosan (CS) sponge were increased for wound dressing application. Synthesis of poloxamer macromer was confirmed by proton nuclear magnetic resonance (1H NMR) spectra.
In-Yong, Kim, Mi-Kyong, Yoo, Bom-Chol, Kim, Se-Kwon, Kim, Hyun-Chul, Lee, Chong-Su, Cho   +5 more
openaire   +2 more sources

A preliminary report on the biocompatibility of photopolymerizable semi-interpenetrating anhydride networks

Biomaterials, 2004
A new family of poly(anhydrides) (PA) has been developed which can be cured photochemically to produce degradable networks. These degradable anhydride networks may be useful in orthopaedics as bone cements and as matrices for drug delivery. This system, which is a semi-interpenetrating network (semi-IPN), has been evaluated for biocompatibility in ...
Venkatram Prasad, Shastri, Robert F, Padera, Peter, Tarcha, Robert, Langer   +3 more
openaire   +2 more sources

Polyethyleneimine-based semi-interpenetrating network membranes for fuel cells

ECS Meeting Abstracts, 2013
Abstract not Available.
Felipe Augusto Moro Loureiro, Robson Pacheco Pereira, Ana Maria Rocco   +2 more
openaire   +1 more source

(Semi-)Interpenetrating polymer networks as fuel cell membranes

Journal of Membrane Science, 2011
Abstract The aim of this paper is to summarize recent progress on full interpenetrating polymer networks (IPNs) and semi-interpenetrating polymer networks (semi-IPNs) as proton-conducting membranes for use in fuel cells. IPN materials possess a series of unique properties, by virtue of which they represent particularly suitable candidates for this ...
Chikh, Linda, Delhorbe, Virginie, Fichet, Odile   +2 more
openaire   +2 more sources

Silk Semi‐Interpenetrating Network Hydrogels for Biomedical Applications

Macromolecular Symposia, 2015
SummaryThe Bombyx mori silk fibroin (SF) has recently received much attention as promising hydrogel matrices due to its biocompatibility, hydrophilicity and good permeability. Beside these, porous SF is too brittle in its dry state that does not provide sufficient strength for practical use.
Kamonchanok Thananukul, Pakkamon Jarruwale, Nuchada Suttenun, Pall Thordason, Patchara Punyamoonwongsa   +4 more
openaire   +1 more source

P and n dopable semi-interpenetrating polymer networks

Journal of Solid State Electrochemistry, 2006
Electrochemical oxidation of thin films of 9-(2,3-epoxypropyl)carbazole (OEPC) oligomer deposited on an electrode leads to the formation of an in-situ cross-linked structure with biscarbazyl redox sites due to the anodic coupling of pendant carbazole units.
T.-X. Lav, F. Tran-Van, J.-P. Bonnet, C. Chevrot, S. Peralta, D. Teyssié, J. V. Grazulevicius   +6 more
openaire   +1 more source

A novel semi-interpenetrating networks system as an absorbent material

European Polymer Journal, 1996
A novel semi-interpenetrating networks (IPNs) system was developed in an attempt to investigate the feasibility of a polymer system as a biodegradable absorbent material. This system consisted of two chemically independent polymers. The first network consisted of sodium alginate which disintegrated by a natural erosive force.
Soon Hong Yuk, Sun Hang Cho, Byung Chunl Shin, Hai Bang Lee   +3 more
openaire   +1 more source

Immobilization of polyisobutene in semi-interpenetrating polymer network architecture

Polymer, 2010
The entrapment of linear polyisobutene (PIB) in semi-IPN architecture is shown to be as efficient as it is in cross-linkable telechelic PIB based full IPN architectures as far as the suppression of cold flow is concerned. Indeed, homogeneous linear PIB/cross-linked polycyclohexylmethacrylate (PCHMA) semi-IPNs containing from 20 to 70 wt% PIB and ...
Davion, Benjamin, Vancaeyzeele, Cedric, Fichet, Odile, Teyssié, Dominique   +3 more
openaire   +2 more sources

Semi‐interpenetrating Networks in Blends of Epoxidized Natural Rubbers

Macromolecular Chemistry and Physics, 2013
AbstractBlends of immiscible ENRs are crosslinked by dicarboxylic acids at 180 °C in the presence of 1,2‐dimethylimidazole. Due to the different epoxidation levels, the cure of ENR50 is complete well before that of ENR10. Depending on the ratio ENR10/ENR50, the blend morphology of the resulting materials, switches from diacid‐enriched nodules of ENR50 ...
Lucie Imbernon, Myriam Pire, Evdokia K. Oikonomou, Sophie Norvez   +3 more
openaire   +1 more source

Photoencapsulation of chondrocytes in poly(ethylene oxide)-based semi-interpenetrating networks

Journal of Biomedical Materials Research, 2000
A photopolymerizing hydrogel system provides an efficient method to encapsulate cells. The present work describes the in vitro analysis of bovine and ovine chondrocytes encapsulated in a poly(ethylene oxide)-dimethacrylate and poly(ethylene glycol) semi-interpenetrating network using a photopolymerization process.
J, Elisseeff, W, McIntosh, K, Anseth, S, Riley, P, Ragan, R, Langer   +5 more
openaire   +2 more sources