화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.20, No.10, 1088-1095, October, 2012
DOI10.1007/s13233-012-0160-9  Export Citation
Effect of the Mesoporous Structure of Titanium Silicate (TS-1) Zeolite on the Melting Behavior and Isothermal Crystallization Behavior of Poly(butylene succinate)/TS-1 Zeolite Hybrid Composites
Sung Yeon Hwang, Won Jae Yoon1, Eui Sang Yoo2, and Seung Soon Im1, †
  • SKC Advanced Technology R&D Center, Gyeonggi, 440-301, Korea
  • 1Department of Fiber and polymer Engineering, College of Engineering, Hanyang University, Seoul, 133-791, Korea
  • 2KITECH Textile Ecology Laboratory, Gyeonggi, 426-900, Korea
E-mail:
In this study, we investigated the effects of mesoporous titanium silicate (TS-1) zeolite on the melting behavior and isothermal crystallization in poly(butylene succinate) (PBS)/TS-1 zeolite hybrid composites (PTHC). Isothermal crystallization results revealed that TS-1 zeolite acted as a nucleation agent in PTHC, thus the t1/2 of PTHC was faster than that of homo-PBS. However, the nucleation effect of TS-1zeolite did not depend on the TS-1 zeolite content. The large surface area of the mesoporous structure readily formed molecular chains inside and outside of the pore mouths of TS-1 zeolite, covering the nucleation site, as a result of the byproduct deposition during polymerization. At isothermal crystallization, temperatures ranging from 88 to 92 ℃, nucleation of TS-1 zeolite occurred because of the presence of free byproducts and the formation of a molecular chain in the pore mouths. In contrast, isothermal temperatures ranging from 80 to 84 ℃ resulted in ineffective nucleus activation because of the steric hindrance in the porous structure. Synchrotron small-angle X-ray scattering (SAXS) analysis revealed that TS-1 zeolite can accelerate lamellar recrystallization during heating.
Keywords:mesoporous structure;TS-1 zeolite;isothermal crystallization;biodegradable polymer.
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