Metal-Free Alkyne Polyhydrothiolation: Synthesis of Functional Poly(vinylenesulfide)s with High Stereoregularity by Regioselective Thioclick Polymerization
作者:Cathy K. W. Jim、Anjun Qin、Jacky W. Y. Lam、Faisal Mahtab、Yong Yu、Ben Zhong Tang
DOI:10.1002/adfm.200901943
日期:2010.4.23
sulfur‐rich polymers has been developed. The alkyne polyhydrothiolations of 4,4′‐thiodibenzenethiol (1) and arylene dipropiolates (2–5) mediated by amines proceed at room temperature in a regioselective fashion, furnishing sole anti‐Markovnikov products of poly(vinylenesulfide)s (P1/2–P1/5) with high molecular weights (Mw up to 32 300) and high stereoregularities (Z content up to 81.4%) in high yields (up
已经开发出一种新的合成途径来生产富含硫的聚合物。的4,4'-硫代二苯(炔polyhydrothiolations 1)和亚芳dipropiolates(2 - 5)通过胺介导的进行在区域选择性方式室温,家具聚唯一抗马氏产品(vinylenesulfide)S(P 1 / 2 -P 1 / 5)具有高分子量(中号瓦特到32 300)和高stereoregularities(ż以高收率含量高达81.4%)(高达98.2%)。聚合物P 1 / 2 -P 1 / 4可溶于常见的有机溶剂。它们是光学透明的,几乎允许所有可见光和IR光通过。由于该聚合物的高的硫含量,它们的膜显示高的折射率(Ñ 在500-1700纳米波长区域= 1.73-1.70)以及高阿贝数(ν d '到539)和低光学分散体(D '降至0.002)在对电信重要的波长处。通过金属络合可以进一步提高其折射率(n最高为2.06),并且可以