Photopolymerization Characteristics of Hyperbranched Photosensitive Polysilozane Urethane Acrylates

摘要：

The effect of phoinitiators, monomers and structure of oligomers on the photopolymerization kinetics of three novel hyperbranched photosensitive polysiloxane urethane acrylates with different generations (HB1PSUA, HB2PSUA and HB3PSUA) synthesized by us was investigated using real time infrared spectroscopy (RT-IR). The results showed that they can well photopolymerize under UV-irradiation in the presence of photoinitiators. Irgacure 1700 exhibited the highest initiating efficiency among those tested photoinitiators. The system of HB1PSUA/TPGDA has the high conversion of double bond and polymerization rate, and they are 92.38% and 22.25s-1, respectively. Photopolymerization kinetics of three systems of HB1PSUA, HB2PSUA and HB3PSUA was compared and results showed that final double bond conversion of the three systems is almost same, while RP max increased with increasing generation of the oligomers.

关键词： polysilozane hyperbranched polymer photopolymerization kinetics

作者: Fang Sun Shengling Jiang

作者单位: College of Science, Beijing University of Chemical Technology,Beijing 100029, P.R. China College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100

会议类型: 国际会议

会议名称: The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)

会议地点: 北京

会议语种:英文

页码: 820-822

在线出版日期: 2010-05-12（万方平台首次上网日期，不代表论文的发表时间）