L-乳酸メチルを側鎖にもつポリメタクリル酸エステルの合成
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概要
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L-Methyl lactate methacrylate (1) was obtained in high yield by reaction of L-methyl lactate and methacrylic anhydride in the presense of 4-(dimethylamino)pyridine. Radical polymerization of 1 was carried out with 2,2'-azobisisobutyronitrile as a initiator. The polymerization reactivity of 1 was high and polymer was obtained in high yield. Gelation was occured during the polymerization in higher monomer concentration, and the polymer obtained was insoluble or swollen in any organic solvents and water. In lower monomer concentration, polymer soluble in various organic solvent was obtained. Number average molecular weight (M_n) and weight average molecular weight (M_w) of the polymer samples were estimated by gel permeation chromatography. The M_w/M_n values were about 2 indicating the polydispersity of the polymer samples.
- 2003-03-10
論文 | ランダム
- 迷信・因習論考
- 子供の迷信行動
- 資本自由化の経済学--官民の迷信と誤謬を衝く(本誌話題論文再録・昭和四二年七月二五日号)
- ヒュ-ムの迷信・狂信論--翻訳と覚え書き
- 雑談・隣りの土々(くにぐに)-3-日本仏教と迷信産業