| 발행년도/권호 |
2009 년 / 권호: V.21,no.4,Aug |
| 논문제목1(원어) |
벤조페논을 함유한 폴리비닐아세테이트 필름의 자외선 조사에 의한 가교 |
| 논문제목2(타언어) |
UV-induced Crosslinking of Poly(vinyl acetate) Films Containing Benzophenone |
| 저자(원어) |
심영재․서은교․최경준․윤성종․장진호 |
| 저자(타언어) |
Young-Jae Sim, Eun-Kyo Seo, Gyong-Jun Choi, Sung-Jong Yoon and Jinho Jang |
| 소속(원어) |
금오공과대학교 나노바이오텍스타일공학과 |
| 소속(타언어) |
Kumoh National Institute of Technology |
| 시작/끝
페이지 |
33 ~ 38 총페이지 : 6 |
| 언어(원어) |
Korean |
| 초록 |
Poly(vinyl acetate) films containing benzophenone were photocrosslinked by continuous UV irradiation. UV irradiation
of PVAc film containing 5% benzophenone induced bulk crosslinking of the polymer indicated by 84.1% of gel fraction after ethyl
acetate extraction. The crosslinking was attributed to the recombination of tertiary polymer radicals generated upon UV irradiation,
which was enhanced by the hydrogen abstraction of benzophenone. Also the UV irradiation resulted in scission of ester linkage and
photooxidation of PVAc surface, which was verified by ATR and zeta potential analysis, implying that the PVAc surface became
more polar and hydrophilic. The zeta potential proportionally increased from +4.5mV to -26.8 mV with increasing UV irradiation.
Also the surface energy of the PVAc film increased with higher UV irradiation upto 56.5 mJ/m2 by the enhanced Lewis acid/base
component with larger contribution of Lewis acid parameter. Accordingly the crosslinked PVAc showed higher thermal stability with
increasing UV energy. |
| 키워드 |
PVAc, photocrosslinking, hydrophilicity, gel fraction, thermal s |
| 학회지 |
|
| Reference |
http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2009_v21n4_33 |
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