Premium
Atom transfer radical polymerization grafting of highly functionalized polystyrene and poly(4‐methylstyrene) macroinitiators with tert ‐butyl acrylate
Author(s) -
Masař Bohumil,
Janata Miroslav,
Vlček Petr,
Toman Luděk,
Kurková Dana
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.11144
Subject(s) - polymer chemistry , styrene , monomer , atom transfer radical polymerization , copolymer , dispersity , polystyrene , materials science , butyl acrylate , acrylate , polymerization , radical polymerization , grafting , molar mass distribution , polymer , composite material
Two monodisperse graft copolymers, poly(4‐methylstyrene)‐ graft ‐poly( tert ‐butyl acrylate) [number‐average molecular weight ( M n ) = 37,500, weight‐average molecular weight/number‐average molecular weight ( M w / M n ) = 1.12] and polystyrene‐ graft ‐poly( tert ‐butyl acrylate) ( M n = 72,800, M w / M n = 1.12), were prepared by the atom transfer radical polymerization of tert ‐butyl acrylate catalyzed with Cu(I) halides. As macroinitiators, poly{(4‐methylstyrene)‐ co ‐[(4‐bromomethyl)styrene]} and poly{styrene‐ co ‐[4‐(1‐(2‐bromopropionyloxy)ethyl)styrene]}, carrying 40% of the bromoalkyl functionalities along the chain, were used. The dependencies of molecular parameters on monomer conversion fulfilled the criteria for controlled polymerizations. In contrast, the dependencies of monomer conversion versus time were nonideal; possible causes were examined. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 2930–2936, 2002