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Atom transfer radical polymerization of hydroxy-functional methacrylates at ambient temperature: comparison of glycerol monomethacrylate with 2-hydroxypropyl methacrylate

Atom transfer radical polymerization of hydroxy-functional methacrylates at ambient temperature: comparison of glycerol monomethacrylate with 2-hydroxypropyl methacrylate
Atom transfer radical polymerization of hydroxy-functional methacrylates at ambient temperature: comparison of glycerol monomethacrylate with 2-hydroxypropyl methacrylate
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.
block-copolymers, methyl-methacrylate, triblock copolymers, diblock copolymers, aqueous-solutions, transition, acrylate, coatings, polymers, behavior
1152-1159
Save, M.
7031fa91-af23-4205-a913-1b0b7b187d57
Weaver, J.V.M.
0e56a55d-c5e3-4e27-bf5d-38b731c0e4d7
Armes, S.P.
3a6ef38a-0234-411f-8cc5-f408155c0483
McKenna, P.
c77f9eed-7ba9-4bef-b0cc-ec2e5c80231d
Save, M.
7031fa91-af23-4205-a913-1b0b7b187d57
Weaver, J.V.M.
0e56a55d-c5e3-4e27-bf5d-38b731c0e4d7
Armes, S.P.
3a6ef38a-0234-411f-8cc5-f408155c0483
McKenna, P.
c77f9eed-7ba9-4bef-b0cc-ec2e5c80231d

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).

Record type: Article

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.

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More information

Published date: 12 February 2002
Keywords: block-copolymers, methyl-methacrylate, triblock copolymers, diblock copolymers, aqueous-solutions, transition, acrylate, coatings, polymers, behavior

Identifiers

Local EPrints ID: 19848
URI: http://eprints.soton.ac.uk/id/eprint/19848
PURE UUID: 2fb23c56-8812-42da-b4b3-e9e9ce8f4d5d

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Date deposited: 22 Feb 2006
Last modified: 27 Apr 2022 11:07

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Contributors

Author: M. Save
Author: J.V.M. Weaver
Author: S.P. Armes
Author: P. McKenna

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