화학공학소재연구정보센터
Journal of Polymer Science Part A: Polymer Chemistry, Vol.57, No.14, 1564-1568, 2019
Effect of oligo(spiroorthocarbonate)s on the volume shrinkage of epoxides during crosslinking by sulfonium salt-initiated cationic polymerization of epoxides
Oligo(spiroorthocarbonate)s 1, which were synthesized by the polycondensation of pentaerythritol derivatives with tetraethylorthocarbonate, were employed as comonomers in the cationic polymerization of epoxide initiated by sulfonium salt. In the copolymerization, the spiroorthocarbonate moiety of 1 underwent double ring-opening reaction, leading to the efficient diminution of the volume shrinkage upon the copolymerization. Thermal properties of the resulting networked polymers were evaluated by TGA. (c) 2019 Wiley Periodicals, Inc.