Helix-Sense-Selective Radical Polymerization of N-(Triphenylmethyl)methacrylamides and Properties of the Polymers

被引：0

作者：

Naohiro Hoshikawa

Chiyo Yamamoto

Yuji Hotta

Yoshio Okamoto

机构：

[1] Graduate School of Engineering,Department of Applied Chemistry

[2] Nagoya University,undefined

[3] EcoTopia Science Institute,undefined

[4] Nagoya University,undefined

来源：

Polymer Journal | 2006年 / 38卷

关键词：

Methacrylamide; Helicity; Optically Active Polymer; Chiral Recognition; Isotactic Polymer;

D O I：

暂无

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学科分类号：

摘要：

N-(Triphenylmethyl)methacrylamide (TrMAM) and N-[di(4-butylphenyl)-phenylmethyl]methacrylamide (DBuTrMAM) were polymerized using a radical initiator. The obtained poly(TrMAM) was insoluble in common organic solvents, but poly(DBuTrMAM) was soluble in chloroform and THF. Both polymers were dissolved in conc. H2SO4 accompanied by cleavage of the side groups to give poly(methacrylamide) (poly(MAM)). The 1H NMR of the polymers in D2SO4 indicated that the polymers obtained at low temperature were nearly 100% isotactic. The poly(MAM) with almost 100% isotacticity showed a crystallinity. The poly(DBuTrMAM) formed a lyotropic crystalline phase in chloroform. The radical polymerization of the monomers in the presence of various chiral additives produced optically active polymers having a prevailing helicity. The optically active poly(TrMAM) exhibited a low chiral recognition.

引用

页码：1258 / 1266

页数：8