Crosslinking Kinetics of Methyl and Ethyl (Alpha-Hydroxymethyl)Acrylates: Effect of Crosslinker Type and Functionality
Polymers and High Performance Materials
Photopolymerizations were carried out using monofunctional monomers methyl or ethyl-(alpha-hydroxymethyl)acrylate (MHMA and EHMA, respectively) with multifunctional crosslinkers. The effect of crosslinker type (acrylate versus methacrylate) and functionality (di-, tri-, tetra- and penta/hexaacrylates) on polymerization rates and conversions were investigated. RHMA systems (monomer plus crosslinker) reached very high conversions (70-83%) for all systems with the exception of dipentaerythritol penta/hexaacrylate systems. Network T-g played an important role in final conversions with dipentaerythritol penta/hexaacrylate and pentaerythritol tetraacrylate, while EHMA (with a lower T-g) went to higher conversions than MHMA. (C) 2003 Elsevier Ltd. All rights reserved.
Smith, T. J.,
Shemper, B. S.,
Nobles, J. S.,
Casanova, A. M.,
Mathias, L. J.
(2003). Crosslinking Kinetics of Methyl and Ethyl (Alpha-Hydroxymethyl)Acrylates: Effect of Crosslinker Type and Functionality. Polymer, 44(20), 6211-6216.
Available at: http://aquila.usm.edu/fac_pubs/3201