Thiol-Ene Photopolymerization of Well-Defined Hybrid Graft Polymers from a Ladder-Like Polysilsesquioxane
- Authors
- Lee, Albert Sung Soo; Choi, Seung-Sock; Baek, Kyung-Youl; Hwang, Seung Sang
- Issue Date
- 2015-01
- Publisher
- POLYMER SOC KOREA
- Citation
- MACROMOLECULAR RESEARCH, v.23, no.1, pp.60 - 66
- Abstract
- A ladder-like structured poly(mercaptopropyl) silsesquioxane (LPMPSQ) was synthesized in one-bath, under mildly basic conditions at room temperature. Obtained LPMPSQ was utilized as a macroinitiator for thiol-ene graft photopolymerization of various vinyl monomers to give hard, soft, hydrophobic, and hydrophilic graft copolymers with low PDI (<1.4). Synthesized hybrid graft copolymers were characterized by H-1 NMR, Si-29 NMR, FTIR, GPC, TGA, and DSC. Thermal studies with these hybrid graft copolymers revealed that the ladder-structure substantially increased the thermal stabilities in the form of increased glass transition temperatures and higher degradation temperatures over their organic analogues.
- Keywords
- BLOCK-COPOLYMERS; POLYMERIZATION; CONJUGATION; BLOCK-COPOLYMERS; POLYMERIZATION; CONJUGATION; polysilsesquioxane; ladder-like structure; photopolymerzation; hybrids; thiol-ene
- ISSN
- 1598-5032
- URI
- https://pubs.kist.re.kr/handle/201004/125962
- DOI
- 10.1007/s13233-015-3004-6
- Appears in Collections:
- KIST Article > 2015
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