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Citation: NIE Kang-Ming, PANG Wen-Min, LU Fei, ZHU Qing-Ren. Nonisothermal Crystallization Kinetics of Poly(ε-caprolactone) in Non-covalently Coupled Hybrid Materials[J]. Chinese Journal of Applied Chemistry, ;2005, 22(10): 1100-1103. shu

Nonisothermal Crystallization Kinetics of Poly(ε-caprolactone) in Non-covalently Coupled Hybrid Materials

1.
a College of Chemistry and Chemical Engineering, Anhui University, Hefei 230039;
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b Structure Research Laboratory, University of Science and Technology of China, Hefei 230026

Corresponding author: NIE Kang-Ming,
Received Date: 25 December 2004
Available Online: 16 July 2005
Fund Project: 安徽省自然科学基金资助项目(03044801) (03044801)

The nonisothermal crystallization kinetics of poly(ε-caprolactone)(PCL) in PCL/silica(SiO₂) non-covalently coupled organic-inorganic hybrids was investigated by means of differential scanning calorimetry(DSC).The results show that the mechanism of the nucleation and growth of the PCL nonisothermal crystallization in the hybrids are related to the composition of the hybrids and their structural micro-environmental effect.Under the same crystallinity,the F(T) value of a 60:40(mass fraction) TEOS/PCL hybrid(sample) was 7.42 K·min^n/(m-1),whose crystallization rate was the highest.On the one hand,the inorganic nano-component(viz.SiO₂) could act as a nucleating agent to facilitate the crystallization of PCL in the hybrids.On the other hand,the intermolecular hydrogen bonding and the SiO₂ network in the hybrids also confine the crystallization of PCL.
- poly(ε-caprolactone),
- organic-inorganic hybrid,
- differential scanning calorimetry,
- nonisothermal crystallization kinetics
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