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(Meth)acrylate vinyl ester hybrid polymerizations
| Content Provider | Scilit |
|---|---|
| Author | Lee, Tai Yeon Cramer, Neil B. Hoyle, Charles E. Stansbury, Jeffrey W. Bowman, Christopher N. |
| Copyright Year | 2009 |
| Description | Journal: Journal of Polymer Science Part A: Polymer Chemistry In this study vinyl ester monomers were synthesized by an amine catalyzed Michael addition reaction between a multifunctional thiol and the acrylate double bond of vinyl acrylate. The copolymerization behavior of both methacrylate/vinyl ester and acrylate/vinyl ester systems was studied with near-infrared spectroscopy. In acrylate/vinyl ester systems, the acrylate groups polymerize faster than the vinyl ester groups resulting in an overall conversion of 80% for acrylate double bonds in the acrylate/vinyl ester system relative to only 50% in the bulk acrylate system. In the methacrylate/vinyl ester systems, the difference in reactivity is even more pronounced resulting in two distinguishable polymerization regimes, one dominated by methacrylate polymerization and a second dominated by vinyl ester polymerization. A faster polymerization rate and higher overall conversion of the methacrylate double bonds is thus achieved relative to polymerization of the pure methacrylate system. The methacrylate conversion in the methacrylate/vinyl ester system is near 100% compared to only ~60% in the pure methacrylate system. Utilizing hydrophilic vinyl ester and hydrophobic methacrylate monomers, polymerization-induced phase separation is observed. The phase separated domain size is on the order of ~1 μm under the polymerization conditions. The phase separated domains become larger and more distinct with slower polymerization and correspondingly increased time for diffusion. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765797/pdf |
| Ending Page | 2517 |
| Page Count | 9 |
| Starting Page | 2509 |
| ISSN | 0887624X |
| e-ISSN | 10990518 |
| DOI | 10.1002/pola.23327 |
| Journal | Journal of Polymer Science Part A: Polymer Chemistry |
| Issue Number | 10 |
| Volume Number | 47 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2009-04-08 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Polymer Science Part A: Polymer Chemistry Biomedical Research Photopolymerization |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
