| 초록 |
Introduction of a grafted architecture into a specific block of linear diblock copolymers produces "comb-coil" type block copolymers(CCBBP). CCBCPs having an A-b-B-g-C type architecture are considered as a class of hybrid block copolymers that have the structural characteristics of both linear diblock copolymers and densely grafted polymers. In this study, a series of well defined PS-b-PBPAS-g-PMMA was synthesized by atom radical transfer radical polymerization(ATRP). The linear diblock copolymers consisting of initiating sites on a specific block was obtained by atom transfer radical polymerization(ATRP) of 4-acetoxystyrene, followed by activators regenerated by electron transfer for ATRP(ARGET ATRP) of styrene, and deprotection and esterification. Grafting of PMMA via ATRP yielded the desired complex architecture. Characterization of synthesized polymers as well as their phase separation behavior will be discussed. |
