방사선으로 제조된 가교 구조의 Poly(Styrene-Butadiene-Styrene) 블록 공중합체 특성에 관한 연구
Study on the Physicochemical Properties of Crosslinked Poly(Styrene-Butadiene-Styrene) Block Copolymers Prepared by Radiation
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In this study, a crosslinked poly(styrene-butadiene-styrene) [SBS] block copolymerswere prepared by using gamma ray irradiation method. The effects of various radiation doses onthe degree of crosslinking, thermo property, and morphology of crosslinked SBS block copolymerwere investigated. The degree of crosslinking of crosslinked SBS block copolymers were measuredby gel-fraction and FT-IR. It was found that the degree of crosslinking of crosslinked SBSblock copolymers increases with increase of the irradiation dose while the TGA result shows thatthe initial degradation temperature of irradiated SBS block copolymer was shifted to lower temperaturewith increasing irradiation dose. These results indicate that degradation reaction alsooccurs when SBS block copolymer is exposed to gamma ray irradiation for crosslinking reaction. The SAXS and FE-SEM results indicate that the phase separation of the styrene block and butadieneblock was reduced with increasing irradiation dose.
Abstract
In this study, a crosslinked poly(styrene-butadiene-styrene) [SBS] block copolymerswere prepared by using gamma ray irradiation method. The effects of various radiation doses onthe degree of crosslinking, thermo property, and morphology of crosslinked SBS block copolymerwere investigated. The degree of crosslinking of crosslinked SBS block copolymers were measuredby gel-fraction and FT-IR. It was found that the degree of crosslinking of crosslinked SBSblock copolymers increases with increase of the irradiation dose while the TGA result shows thatthe initial degradation temperature of irradiated SBS block copolymer was shifted to lower temperaturewith increasing irradiation dose. These results indicate that degradation reaction alsooccurs when SBS block copolymer is exposed to gamma ray irradiation for crosslinking reaction. The SAXS and FE-SEM results indicate that the phase separation of the styrene block and butadieneblock was reduced with increasing irradiation dose.
참고문헌 (11)
- Akhavan J, "Effect of UV and thermal radiation on polyNIMMO", Polymer, 42, pp.7711~7718 (2001)
- Akhavan J, "Effect of gamma radiation on polyNIMMO", Polymer, 44, pp.7617~7624 (2003)
- Daeker C, "Photocrosslinking of functionalized rubbers, 7a Styrene-butadiene block copolymers", Macromol. Chem. Phys, 200, pp.358~367 (1999)
- Datta S, "Influence of silica and electron beam radiation on the properties of a high vinyl styrene-butadiene-styrene block copolymer", J. Polym. Res, 18, pp.1185~1196 (2011)
- Fagundes ECM, "Influence of a crosslinked system on the morphology and properties of TPVs based on PA", NBR J, 2012, pp.123, 3072~3080
- Sakurai S, "Mechanical properties of polystyrene-block-polybutadiene-blockpolystyrene triblock copolymers crosslinked in the disordered state", Polymer, 40, pp.2071~2076 (1999)
- Sakurai S, "Morphology of poly(styrene-block-butadiene-block-styrene)triblock copolymers cross-linked in the disordered state", Macromolecules, 20, pp.5479~5486 (1993)
- Won J, "Fixation of nanosized proton transport channels in membranes", Macromolecules, 36, pp.3228~3234 (2003)
- Wu G, "UV exposure effects on photoinitiator-grafted styrene-butadiene-styrene triblock copolymer", J. Appl. Polym. Sci, 120, pp.2627~2631 (2011)
- Wu G, "A novel UV-crosslinked pressure-sensitive adhesive based on photoinitiator-grafted SBS", Int. J. Adhes. Adhes, 30, pp.43~46 (2011)
- Zhang Y, "Radiation effects on styrene-.butadiene-.styrene copolymer", Nucl. Instrum. Meth. B, 266, pp.3431~3436 (2008)