Atom transfer radical polymerization of hydroxy-functional methacrylates at ambient temperature: comparison of glycerol monomethacrylate with 2-hydroxypropyl methacrylate
Save, M., Weaver, J.V.M., Armes, S.P. and McKenna, P. (2002) Atom transfer radical polymerization of hydroxy-functional methacrylates at ambient temperature: comparison of glycerol monomethacrylate with 2-hydroxypropyl methacrylate. Macromolecules, 35, (4), 1152-1159. (doi: 10.1021/ma011541r).
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Description/Abstract
The homopolymerization of two hydroxy-functional monomers, glycerol monomethacrylate [GMA] and 2-hydroxypropyl methacrylate [HPMA], has been investigated using ATRP chemistry in aqueous, methanolic, or water/methanol solution. In methanol, both monomers are polymerized to high conversion with reasonably good control (final polydispersities are 1.30 and 1.09 for GMA and HPMA, respectively) within a few hours at 20 °C. "Self-blocking" chain growth experiments indicate good living character under these conditions. Addition of water leads to much more rapid polymerizations in both cases, but high polydispersities (e.g., Mw/Mn = 1.90 for a 50/50 water/methanol mixture) were always obtained with GMA. With HPMA, relatively low polydispersities (Mw/Mn = 1.17) can be achieved under the same conditions. Several new diblock copolymers were synthesized using poly(alkylene oxide)-based macroinitiators. One of these hydrophilic-hydrophobic diblocks proved to be thermoresponsive and aggregated reversibly in aqueous media.
| Item Type: | Article |
|---|---|
| ISSNs: | 0024-9297 (print) |
| Related URLs: | |
| Keywords: | block-copolymers, methyl-methacrylate, triblock copolymers, diblock copolymers, aqueous-solutions, transition, acrylate, coatings, polymers, behavior |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 19848 |
| Date Deposited: | 22 Feb 2006 |
| Last Modified: | 01 Jun 2011 13:38 |
| Contributors: | Save, M. (Author) Weaver, J.V.M. (Author) Armes, S.P. (Author) McKenna, P. (Author) |
| Date: | 12 February 2002 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/19848 |
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