منابع مشابه
Studies on Surface Modification of Silicone Biomaterials
This paper presents our studies on surface modification of silicone elastomer by collagen grafting/coating and electron beam irradiation. Two types of collagen hydrolysates with different molecular weights were obtained and characterized, which were used in experiments. Both silicone elastomer crosslinking and collagen grafting on the surface of silicone elastomer were achieved by electron beam...
متن کاملSTUDIES ON DYE DOPED POLYMERS Abstract
The fluorescence and amplified spontaneous emission characteristics of rhodamine 6G impregnated in polyacrylamide is reported in this chapter. Using amplified spontaneous emission gain radiative and related properties of this dye doped matrix was measured. It was found that photostability of rhodamine 6G is unusually high in this matrix compared to other polymer hosts like polyrnethylmethacrylate.
متن کامل[The idea of studies on dental polymers].
本稿はわた くしが停年退官するに当た り,口 腔 病学会で特別講演 した内容を骨子 とするものであ る。 ご承知のように,最 近の高分子歯科材料の進歩 には目ざましい ものがあるが,わ た くしは過去40 年にわた りこの進歩をみずか ら経験 してきた。 その進歩の経過をたどりなが ら,さ らにこの研 究の発展がこれか らの歯科医療にどうかかわって ゆ くのか,と いうことを考えてみたい。 人体の硬組織,歯 や骨が主 として無機質のリン 酸 カルシゥム(hydroxyapatiteな ど)と 有機質 のコラーゲンか ら構成されているように,最 近は 人工歯や人工骨の組成や構造を限 りな く天然のそ れに近づけようとする指向がみ られる。しかし, 歯や骨は体内で長い時間をかけて形成され,し か も新陳代謝によってその耐久性が維持されている のに対 し,人 工歯や人工骨にはその機能を付与...
متن کاملDecomposition procedure using methyl orthoformate to analyze silicone polymers.
A new decomposition method for structural analysis of polysiloxanes (silicones) was developed using methyl orthoformate. The siloxane bonds in samples with vinyl and/or methyl side groups decomposed under relatively mild acidic conditions up to around 70°C and were followed by methoxylation at the cleaved linkages with few side reactions. The product yields with respect to the siloxane monomer ...
متن کاملEffects of functional groups on surface pressure-area isotherms of hydrophilic silicone polymers.
Organic/inorganic hybrid silicone polymers are increasingly used in cosmetics, inks and paints, and fabric care applications owing to their special Si-O bond characteristics. Because of the presence of organic as well as inorganic groups, they show the properties of both, and the presence of hydrophobic as well as hydrophilic character makes them behave like a hybrid polymer. Though they are wi...
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ژورنال
عنوان ژورنال: Kobunshi Kagaku
سال: 1957
ISSN: 1884-8079,0023-2556
DOI: 10.1295/koron1944.14.265