Synthesis of bicyclic bis(
<i>γ</i>
‐butyrolactone) derivatives bearing sulfide moieties and their alternating copolymers with epoxide
作者:Sousuke Ohsawa、Kazuhide Morino、Atsushi Sudo、Takeshi Endo
DOI:10.1002/pola.26278
日期:2012.11.15
bis(γ‐butyrolactone)s (BBL) bearing sulfide moiety 2 were readily synthesized from a precursor BBL bearing isopropenyl group 1. This efficient and versatile synthesis of 2 was achieved by a highly reliable radical addition reaction of thiols to the C‐C double bond in the isopropenyl group 2 underwent anionic copolymerization with glycidyl phenyl ether in a 1:1 alternating manner to give a series of
从带有异丙烯基1的前体BBL可以容易地合成一系列带有硫化物部分2的双环双(γ-丁内酯)(BBL)。这种高效且通用的2合成方法是通过高度可靠的硫醇自由基加成反应实现的。异丙烯基2中的C C双键与缩水甘油基苯基醚以1:1交替方式进行阴离子共聚,得到一系列相应的聚酯3,其侧链继承了2的硫化物基团。Ť g ^3的)表现出对硫化物侧链柔韧性的明显依赖。通过使用己二硫醇从1合成双官能团BBL 4并与双酚A二缩水甘油醚5进行共聚,进一步扩大了该共聚体系的范围。共聚以高收率得到了相应的网状聚合物。在共聚过程中,4的双开环反应的体积膨胀性质有助于有效补偿环氧化物开环的固有体积收缩,从而实现无收缩的固化体系。©2012 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2012年