Molecular weight dependence of helical conformation of amino acid‐based polyphenylacetylenes
作者:Masashi Shiotsuki、Shohei Kumazawa、Naoya Onishi、Fumio Sanda
DOI:10.1002/pola.24941
日期:2011.11.15
a series of amino acid based polyphenylacetylene derivatives having a wide range of molecular weights (Mn: 1500–128,800) with relatively narrow polydispersity. On the basis of the CD and UV–vis spectra of the obtained polymers measured in DMF, plotting the [θ] and Kuhn dissymmetry factor, g, against the molecular weight revealed that their predominantly one‐handed helical conformation strongly depended
定义明确的活性聚合催化剂[(nbd)Rh C(Ph)= CPh 2 }(PPh 3)] / PPh 3产生了一系列分子量范围广的氨基酸基聚苯乙炔衍生物(M n:1500–128,800),且分散度相对较窄。根据所得聚合物在DMF中的CD和UV-vis光谱,绘制[θ]和库恩不对称因子g与分子量的关系图,表明它们的主要单手螺旋构型强烈依赖于分子量。