Journal
MACROMOLECULAR RESEARCH
Volume 19, Issue 11, Pages 1166-1171Publisher
SPRINGER
DOI: 10.1007/s13233-011-1115-2
Keywords
cyclo-aliphatic epoxide; hybrimer; sol-gel; photo-cationic polymerization; DMA
Categories
Funding
- National Research Foundation of Korea (NRF)
- Korea government (MEST) [2011-0006406/2011-0017971]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10033260] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Korea Institute of Industrial Technology(KITECH) [10006932] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2010-0013811, 2010-0018487] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Cyclo-aliphatic epoxy and methacrylate hybrimers were fabricated via the photocationic polymerization of cycloaliphatic epoxy oligosiloxanes and photoradical polymerization of methacrylate oligosiloxanes, respectively. The thermomechanical/thermal properties of these two hybrimers using different photo-polymerization mechanisms were compared. Although both oligosiloxanes showed similar degrees of condensation, siloxane network structures, and sizes, the cycloaliphatic epoxy hybrimer showed improved thermomechanical/thermal properties as compared to the methacrylate hybrimer. This was attributable to a highly crosslinked network structure developing from the living characteristics of photocationic polymerization and the short, compact organic chains of the cycloaliphatic epoxy hybrimer as compared to the methacrylate hybrimer.
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