Citation:
Li-jie Ma, Hai-qiao Wang, Li-fan He, Xiao-yu Li. HYPERBRANCHED EPOXY RESINS PREPARED BY PROTON TRANSFER POLYMERIZATION FROM AN A2 + B3 SYSTEM[J]. Chinese Journal of Polymer Science,
2011, 29(3): 300-307.
doi:
10.1007/s10118-011-1034-x
HYPERBRANCHED EPOXY RESINS PREPARED BY PROTON TRANSFER POLYMERIZATION FROM AN A2 + B3 SYSTEM
摘要:
Epoxy-terminatedhyperbranched polymers (EHBPs)were prepared by proton transfer polymerization and characterized by FT-IR, 1H-NMR and GPC. The solution and thermal properties of the uncured samples and mechanical properties of cured samples were examined. The thermo-stable products had good solubility in polar solvents, low solution viscosity and Tgs ranging from 15C to 33C depending on their molecular weights. The mechanical properties of cured films were studied and compared with those of a bisphenol-A type epoxy resin. The films of EHBPs had good impact resistance and high gloss values without sacrificing hardness and adhesion.
English
HYPERBRANCHED EPOXY RESINS PREPARED BY PROTON TRANSFER POLYMERIZATION FROM AN A2 + B3 SYSTEM
Abstract:
Epoxy-terminatedhyperbranched polymers (EHBPs)were prepared by proton transfer polymerization and characterized by FT-IR, 1H-NMR and GPC. The solution and thermal properties of the uncured samples and mechanical properties of cured samples were examined. The thermo-stable products had good solubility in polar solvents, low solution viscosity and Tgs ranging from 15C to 33C depending on their molecular weights. The mechanical properties of cured films were studied and compared with those of a bisphenol-A type epoxy resin. The films of EHBPs had good impact resistance and high gloss values without sacrificing hardness and adhesion.
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Key words:
- Hyperbranched
- / Epoxy
- / Proton transfer polymerization
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