z-logo
Premium
Atom Transfer Radical Polymerization of N ‐Isopropylacrylamide
Author(s) -
Masci Giancarlo,
Giacomelli Laura,
Crescenzi Vittorio
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200300140
Subject(s) - polymer chemistry , polymerization , atom transfer radical polymerization , chain transfer , copolymer , radical polymerization , chemistry , living free radical polymerization , ionic polymerization , reversible addition−fragmentation chain transfer polymerization , solution polymerization , living polymerization , polymer , organic chemistry
Summary: Controlled polymerization of N ‐isopropylacrylamide (NIPAAM) was achieved by atom transfer radical polymerization (ATRP) using ethyl 2‐chloropropionate (ECP) as initiator and CuCl/tris(2‐dimethylaminoethyl)amine (Me 6 TREN) as a catalytic system. The polymerization was carried out in DMF:water 50:50 (v/v) mixed solvent at 20 °C. The first order kinetic plot was linear up to 92% conversion. Controlled molecular weights up to 2.2 × 10 4 and low polydispersities (1.19) were obtained. The living character of the polymerization was also demonstrated by self‐blocking experiments. Block copolymers with N , N ‐dimethylacrylamide (DMAAM) and 3‐sulfopropyl methacrylate (SPMA) were successfully prepared.Molecular weights and polydispersities of polyNIPAAM versus NIPAAM conversion for two different degrees of polymerization.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here