한국염색가공학회:학술대회논문집 (Proceedings of the Korean Society of Dyers and Finishers Conference)
- 한국염색가공학회 2008년도 제38차 학술발표대회
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- Pages.28-30
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- 2008
자외선 조사를 이용한 PEO 필름의 광가교
Photocrosslinking of PEO Films Using UV Irradiation
- 발행 : 2008.04.11
초록
Poly(ethylene oxide)(PEO) of molecular weight of 300,000 was crosslinked by exposure to UV irradiation. Photochemical crosslinking of PEO occurred by UV irradiation and the presence of benzophenone in the film which acts as a hydrogen-abstracting agent. Percent conversion of the polymer into gel as well as water absorbency were investigated gravimetrically. Gel fraction and water absorbency of PEO films increased with increasing UV energy. In case of photocrosslinked PEO films with benzophenone, gel fraction increased up to about 90%. The thermal behavior of crosslinked PEO films was studied by thermogravimetric analysis. The maximum decomposition temperature increased with increasing UV energy and benzophenone concentration.
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