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Temperature and pH Dependency of Copolymerization Parameters of Acrylic Acid and 2-Hydroxypropyl Acrylate |
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| Authors: | Christoph Blaszk Jan Grünitz Maike Möller Werner Pauer Hans-Ulrich Moritz Christian Schwede |
| Institution: | 1. Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse. 45, D-20146 Hamburg, Germany;2. Siemens AG, D-65926, Frankfurt/Höchst, Germany;3. BASF AG, GKE – B1, D-67056 Ludwigshafen, Germany |
| Abstract: | Summary: Since copolymerization parameters of acrylic acid (AA) and 2-hydroxypropyl acrylate (HPA) in aqueous solutions are scarcely investigated a new method and different experimental setups were developed to run copolymerization experiments at different temperatures and pH values. The experiments were done with UV- or azo- initiation and analyzed by residual monomer analytics with HPLC and GPC methods. Based on the data obtained the conversion and copolymerization parameters were calculated with different mathematical models. |
| Keywords: | acrylic acid copolymerization free radical polymerization monomer reactivity ratios |