Preparation of Some Br-ended MMA Three Arm Star Block Copolymers via ATRP and Other Amphiphilic Hydroxyl Ended Ones

Abstract

MMA-St, MMA-VA, MMA-St-MA, and MMA-VA-n-BuMA three arm star block copolymers were prepared via ATRP by using trifunctional initiator. TMED CuBr catalytic system was involved in such polymerization processes at 90°C. Subsequent transformation of the bromine ends to hydroxyl ones were carried out on MMA-St and MMA-VA copolymers as two different examples, and two variable routes were involved in the transformation processes using ethanolamine and silver, respectively.

Keywords:

• ATRP
• Block copolymers
• MMA macroinitiators
• Star polymers
• TEM

Notes

Polymerization conditions, TMED:CuBr:initiator:monomer = 6:3:1:100 at 90°C in toluene.