Health & Environmental Research Online (HERO)


Print Feedback Export to File
4711259 
Journal Article 
Cross-linking photopolymerization of monoacrylate initiated by benzophenone 
Sanai, Y; Kagami, S; Kubota, K 
2018 
Yes 
Journal of Polymer Science. Part A, Polymer Chemistry
ISSN: 0887-624X
EISSN: 1099-0518 
56 
14 
1545-1553 
WOS:000434417900008 
The chain-end structure of the photopolymerized acrylate using benzophenone as an initiator was investigated as well as polymerization behavior. Dodecyl acrylate was used as a monomer in this study. Gelation occurred during ultraviolet (UV) irradiation, whereas a cross-linker was not employed. Conversion-time profile below gel point gave a linear first-order plot suggesting that the steady-state was held throughout polymerization. Matrix-assisted laser desorption/ionization time-of-flight mass spectra of the resultant polymer indicated that most polymers had an acryloyl group at one of the chain-ends, while some polymers had an acryloyl group at each chain-end. The cross-linking reaction leading to gelation would have been caused by the subsequent copolymerization of the residual monomer with the latter polymer having two acryloyl groups. Dissolved oxygen in the monomer solution influenced the polymer structure giving hydroxyl group at chain-end. (c) 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 1545-1553 
gelation; MALDI; photopolymerization; radical polymerization