159639-83-5Relevant articles and documents
Catalyst-free thiol-yne click polymerization: A powerful and facile tool for preparation of functional poly(vinylene sulfide)s
Yao, Bicheng,Mei, Ju,Li, Jie,Wang, Jian,Wu, Haiqiang,Sun, Jing Zhi,Qin, Anjun,Tang, Ben Zhong
, p. 1325 - 1333 (2014)
The thio-click polymerization is a well-expanded concept of click polymerization. Among the click polymerizations, the thiol-yne click polymerization is less developed and still in its infancy stage. In general, UV light, elevated temperature, amine, or transition metal complexes is needed to catalyze the thiol-yne click polymerization, which greatly complicates the experimental operation and limits its application. In this work, a facile and powerful thiol-yne click polymerization was developed, which could be carried out under very mild conditions without using external catalyst. Simply mixing the aromatic diynes (1a-1e) and dithiols (2-4) with equivalent molar ratio in THF at 30 C will readily produce soluble and regioregular functional poly(vinylene sulfide)s (PIa-PIe, PII, and PIII) with high molecular weights (Mw up to 85 200) in excellent yields (up to 97%) after as short as 2 h. Furthermore, no double addition product of an ethynyl group was found. This catalyst-free thiol-yne click polymerization has remarkably simplified the reaction conditions and will facilitate the preparation of functional materials applied in diverse areas.
