| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Reversible Addition-Fragmentation chain-Transfer (RAFT) dispersion polymerization of block copolymer nano-objects in presence of solvophilic macro-RAFT agent in ethanol/epoxy resin mixture |
| 초록 |
One of the common methods for improving the toughness of the epoxy resin is dispersing core-shell rubber particles prepared by emulsion polymerization. Usually, these particles are coagulated from latex and then re-dispersed in the epoxy resin under strong shear force, but it is difficult to achieve uniform dispersion without agglomeration. Therefore, we report on the simplified method without the re-dispersion processes. The polymer particles are obtained through reversible addition-fragmentation chain-transfer (RAFT) dispersion polymerization in ethanol/epoxy resin mixture using a macro RAFT agent containing hydroxyl groups. After polymerization, the epoxy resin in which polymer particles were dispersed could be obtained simply by removing ethanol. The block copolymers obtained under different conditions were characterized by size exclusion chromatography and 1H NMR. The morphology of the block copolymers was confirmed by transmission electron microscopy (TEM). |
| 저자 |
이은호1, 김경호1, 이원주2, 서봉국2, 백현종1
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| 소속 |
1부산대, 2한국화학(연) |
| 키워드 |
RAFT dispersion polymerization; epoxy resin; nano-objects; block copolymer; macro-RAFT agent
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| E-Mail |
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