Phenol-yne Click Polymerization: An Efficient Technique to Facilely Access Regio- and Stereoregular Poly(vinylene ether ketone)s
作者:Yang Shi、Tianwen Bai、Wei Bai、Zhe Wang、Ming Chen、Bicheng Yao、Jing Zhi Sun、Anjun Qin、Jun Ling、Ben Zhong Tang
DOI:10.1002/chem.201702966
日期:2017.8.10
Alkyne‐based click polymerizations have been well‐established. However, in order to expand the family to synthesize polymers with new structures and novel properties, new types of click polymerizations are highly demanded. In this study, for the first time, we established a new efficient and powerful phenol‐yne click polymerization. The activated diynes and diphenols could be facilely polymerized in
基于炔的点击聚合已得到很好的确立。但是,为了扩展家族以合成具有新结构和新性能的聚合物,对新型点击聚合的需求很大。在这项研究中,我们首次建立了一种新的高效强效的苯酚-点击聚合反应。在4-二甲基氨基吡啶(DMAP)的路易斯碱催化剂的存在下,可以在温和的反应条件下轻松地活化活化的二炔和二酚。以高收率(高达99.0%)获得了具有高分子量(高达35200)的区域和立构规整的聚(乙烯基醚酮)(PVEK)。在密度泛函理论(DFT)计算的帮助下,很好地解释了反应机理。此外,由于乙烯基醚序列起着稳定但对酸敏感的作用,