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Preparation of Well‐Defined Poly(2‐hydroxyethyl methacrylate) Macromonomers via Atom Transfer Radical Polymerization
Author(s) -
Yang Pengcheng,
Armes Steven P.
Publication year - 2014
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.201300617
Subject(s) - polymer chemistry , dispersion polymerization , atom transfer radical polymerization , macromonomer , living free radical polymerization , polymerization , radical polymerization , methacrylate , dispersity , chain transfer , reversible addition−fragmentation chain transfer polymerization , materials science , living polymerization , chemistry , organic chemistry , polymer
A series of six near‐monodisperse methacrylic macromonomers is prepared via atom transfer radical polymerization (ATRP) of 2‐hydroxyethyl methacrylate using a tertiary amine‐functionalized initiator at 50 °C, followed by quaternization with excess 4‐vinylbenzyl chloride at 20 °C. GPC analyses indicate polydispersities of around 1.20 and their mean degrees of polymerization (DP) range from 20 to 70, as judged by both 1 H NMR and UV spectroscopy. The former technique is more convenient but the latter proved more accurate for the higher DP values, provided that an appropriate model compound is utilized for calibration. Finally, these new macromonomers are used to prepare sterically stabilized polystyrene latexes with relatively narrow size distributions via alcoholic dispersion polymerization.