Photoinduced free radical promoted cationic block copolymerization by using macrophotoinitiators prepared by ATRP and ring-opening polymerization methods


Yagci Y. , DEGIRMENCI M.

ADVANCES IN CONTROLLED/LIVING RADICAL POLYMERIZATION, cilt.854, ss.383-393, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 854
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1021/bk-2003-0854.ch027
  • Dergi Adı: ADVANCES IN CONTROLLED/LIVING RADICAL POLYMERIZATION
  • Sayfa Sayıları: ss.383-393

Özet

The present work describes synthesis of well-defined polymeric photoinitiators via atom transfer radical polymerization (ATRP) and ring-opening polymerization (ROP) and their subsequent use in photoinduced block copolymerization. The first step of the process involves controlled polymerization of styrene and epsilon-caprolactone by using appropriate initiators possessing photolabile groups as well as functionality for ATRP and ROP, respectively. By selecting corresponding initiator and modifying the polymerization conditions, end-chain polymeric photoinitiators with various molecular weights and low polydispersities were obtained. These polymers were used in photoinduced free radical promoted cationic polymerization resulting in the formation of block copolymers.