Synthesis and characterization of telechelic polymethacrylates via RAFT polymerization

• DOI: 10.1002/pola.20558
• Publication Date: 2005-01-18T20:47:03Z
• Authors: Vincent Lima; Xulin Jiang; José Brokken‐Zijp; Peter J. Schoenma...; Bert Klumperman; Rob Van Der Linde
• Keywords: Chain transfer; Raft; Aminolysis; Telechelic polymer

Abstract The reversible addition–fragmentation chain transfer (RAFT) polymerization technique has been employed to synthesize linear α,ω ‐telechelic polymers with either hydroxyl or carboxyl end groups. Methyl methacrylate, butyl and acrylate were polymerized RAFT polymerization. polymerizations exhibited the usual characteristics of living processes. Telechelic polymethacrylates obtained from a monofunctional polymer two‐step chain‐end modification procedure dithioester group. consisted an aminolysis followed by Michael addition on resulting thiol. different steps detailed analysis. It was found that this route always accompanied side reactions, in disulfides hydrogen‐terminated chains as products next hydroxyl‐terminated telechelic polymers. poly(butyl acrylates) groups produced single step difunctional trithiocarbonates agents. high yield terms group functionality confirmed new critical‐liquid‐chromatography method, which separated based acid‐functionality mass spectrometry © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Chem 43: 959–973,