Issue 6, 2012

Preparation of block copolymer particles by two-step, reversible chain transfer catalyzed polymerization (RTCP) with nitrogencatalyst in miniemulsion systems

Abstract

We demonstrated a successful preparation of poly(methyl methacrylate) (PMMA)-b-poly(benzyl methacrylate) (PBzMA) particles in aqueous media by two-step reversible chain transfer catalyzed polymerization (RTCP) with N-iodosuccinimide as a catalyst at 70 °C. The polymerization smoothly proceeded, and the number-average molecular weight (Mn) increased linearly with conversion, which agreed with the theoretical molecular weight (Mn,th). The molecular weight distribution at each conversion was narrow (polydispersity index ≈ 1.4). Approximately 88% PMMA chains became PMMA-b-PBzMA at 64% conversion, which was a relatively high value.

Graphical abstract: Preparation of block copolymer particles by two-step, reversible chain transfer catalyzed polymerization (RTCP) with nitrogen catalyst in miniemulsion systems

Article information

Article type
Communication
Submitted
02 Mar 2012
Accepted
12 Mar 2012
First published
30 Mar 2012

Polym. Chem., 2012,3, 1394-1398

Preparation of block copolymer particles by two-step, reversible chain transfer catalyzed polymerization (RTCP) with nitrogen catalyst in miniemulsion systems

Y. Kitayama, M. Yorizane, H. Minami and M. Okubo, Polym. Chem., 2012, 3, 1394 DOI: 10.1039/C2PY20120H

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