| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
여성연구자 특별 심포지움 (일반구두발표(Post-Doc., 발표 20분) 및 대학원생 구두발표(발표 15분)만 신청 가능)* |
| 제목 |
Development of a supramolecular accelerator simultaneously to increase the cross-linking density and ductility of an epoxy resin |
| 초록 |
The development of a novel accelerator capable of simultaneously enhancing the cross-linking density and ductility of an epoxy resin without sacrificing the reaction rate is reported. The basic concept comprises the synthesis of a tertiary amine functionalized polyrotaxane (PRX_NR1) accelerator: a molecular necklace structure that induces a high cross-linking density as well as active molecular movement. FT-IR and DSC measurements confirmed that the PRX_NR1 containing epoxy resin afforded a high reaction rate. Furthermore, the cross-linking density and mechanical properties of the epoxy resin were confirmed by DMA, tensile test, impact test. Interestingly, the epoxy resin exhibited a simultaneous increase in ductility which is important to avoid brittle fracture of the epoxy resins. These results indicate that the proposed molecular necklace-like supramolecular PRX_NR1 accelerator is highly effective to overcome the traditional drawbacks of an epoxy resin. |
| 저자 |
서지애, 서지훈
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| 소속 |
고려대 |
| 키워드 |
supramolecule; polyrotaxane; cross-linker; accelerator; epoxy
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| E-Mail |
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