| 발행년도/권호 |
2012 년 / 권호: V.24,no.4,Dec |
| 논문제목1(원어) |
아세토페논을 함유한 Poly(phenylene sulfide)의 광가교에 의한 내열성과 인장인성 강화 |
| 논문제목2(타언어) |
The Improvement of Thermal Stability and Tensile Toughness by the Photocrosslinking of Poly(phenylene sulfide) containing Acetophenone |
| 저자(원어) |
장용준 · 장진호 |
| 저자(타언어) |
Yong-Joon Jang and Jinho Jang |
| 소속(원어) |
금오공과대학교 소재디자인공학과 |
| 소속(타언어) |
Kumoh National Institute of Technology |
| 시작/끝
페이지 |
281 ~ 287 총페이지 : 7 |
| 언어(원어) |
Korean |
| 초록 |
Abstract: Poly(phenylene sulfide) films containing acetophenone as a photoinitiator were photocrosslinked under UV
irradiation using a continuous UV irradiator. The gel fraction of the irradiated PPS in 1-Chloro naphthalene reached 94.7%
with increasing UV energy and the photoinitiator concentration in the film upto 200J/cm2 and 12wt% respectively. Solid
state 1C NMR analysis suggested that the crosslinking occurred between the phenylene chains in PPS, indicating that the
acetophenone may abstract the phenylene hydrogens and subsequently adjacent polymer radicals could be recombined to form
the crosslinked structure. The crosslinking improved the thermal behavior of PPS such as loss of Tg and Tc, higher melting
point and lower melting enthalphy as well as significantly higher peak pyrolysis temperature as much as 63.5oC. Surprisingly
the tensile toughness of the most crosslinked PPS increased by 842%, resulting from the substantial enhancements in tensile
modulus, strength and strain as much as 76%, 236% and 240% respectively. Also dynamic mechanical measurement
indicated that the distance between crosslinks in the crosslinked PPS reached 85.3 g/mol corresponing to a crosslink
density of 0.012 mol/g. |
| 키워드 |
Keywords: poly(phenylene sulfide), photoinitiator, photocrosslinking, gel fraction, pyrolysis, toughness |
| 학회지 |
|
| Reference |
http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2012_v24n4_281 |
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