Synthesis, characterization, and glass transition temperature of poly(styrene-b-butyl methacrylate) block copolymers by stable free radical polymerization

摘要

The synthesis of controlled polystyrenes with different molecular weights has been performed in the presence of 1-phenyl-1-(2,2,8,6-tetramethyl-1-piperidinyl- oxy)ethane (PETEMPO). The polystyrenes have served as macroinitiators for the formation of poly(styrene-b-butyl methacrylate) block copolymers, Using differential scanning calorimetry (DSC) it has been shown that all black copolymers synthesized do not present phase segregation. (C) 2001 John Wiley & Sons, Inc. [References: 26]