单体
聚合
聚氨酯
聚合物
高分子化学
微观结构
熔点
表征(材料科学)
材料科学
酒
化学
欧米茄
高分子科学
有机化学
结晶学
纳米技术
物理
量子力学
作者
Ron M. Versteegen,Rint P. Sijbesma,E. W. Meijer
标识
DOI:10.1002/(sici)1521-3773(19991004)38:19<2917::aid-anie2917>3.0.co;2-7
摘要
More than 50 years after Otto Bayer's detailed description of [m,n]-polyurethanes, the first general synthesis of [n]-polyurethanes 1 is described. This series of aliphatic [n]-polyurethanes is synthesized by the in situ polymerization of the corresponding alpha,omega-isocyanato alcohol monomers, which in turn are made out of linear alpha,omega-amino alcohols and di-tert-butyltricarbonate. Polymers of high molecular weight possessing a uniform microstructure are obtained, while their melting points show a strong odd-even effect.
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