Results 251 to 260 of about 184,697 (283)

Heparinized styrene‐butadiene‐styrene elastomers

Journal of Biomedical Materials Research, 1979
AbstractA heparinized high‐strength elastomer has been developed which is potentially useful as a nonthrombogenic vascular prosthesis. A surface hydroxylated styrene‐butadiene‐styrene (SBS) block copolymer with at least 40% extent of reaction after glow‐discharge cleaning was coated with a 20% acetylated polyvinyl alcohol/heparin mixture containing ...
M F, Goosen, M V, Sefton
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Cytogenetic effects of styrene and styrene oxide

Mutation Research/Genetic Toxicology, 1978
Styrene and styrene oxide induce various cytogenetic effects, similar in both human lymphocytes in vitro and onion root-tip cells in vivo. Styrene appears to cause chromosome breakage in both systems, and in Allium it shows a strong c-mitotic effect. Styrene oxide, on the other hand, seems to destroy the tertiary folding of the chromatin.
K, Linnainmaa, T, Meretoja, M, Sorsa, H, Vainio   +3 more
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Mutagenic effects of styrene and styrene oxide

Mutation Research/Genetic Toxicology, 1979
Abstract Styrene and its presumed metabolite styrene oxide were tested in the Salmonella/liver-microsome test on the tester strains TA1535, TA1537, TA1538, TA98 and TA100 of Salmonella typhimurium . Styrene oxide, in the concentration range 1–10 μmoles per plate, was mutagenic on TA1535 and TA100, both in the absence and the presence of a rat-liver ...
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Styrenics: polystyrene and styrene copolymers

1998
The first modification of rubber by incorporation of polystyrene (PS) is credited to Francis Edward Matthews, who during the years 1911-1913 (Figure10.1) received several international patents for the manufacture of lacquers and ‘articles that are normally made of hard rubber, celluloid, vulcanite, ebonite, glass, wood and similar materials’.
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