Journal
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
Volume 57, Issue 15, Pages 1530-1541Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2017.1410839
Keywords
Biopolymer; crystallization behavior; mechanical properties; PCHC; PCL
Categories
Funding
- National Natural Science Foundation of China [21376276]
- Special-funded Program on National Key Scientific Instruments and Equipment Development of China [2012YQ230043]
- Fundamental Research Funds for the Central Universities
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The isothermal and nonisothermal crystallization behaviors of poly(epsilon-caprolactone) and poly (caprolactone-co-cyclohexene carbonate) were investigated utilizing differential scanning calorimeter and polarized optical microscope. The kinetic of isothermal crystallization could be well defined by Avrami equation, while Mo model was successful to describe the nonisothermal crystallization. Based on the obtained kinetic parameters, poly(cyclohexene carbonate) segments not only act as a nucleating agent accelerating nucleating rate but also restrict the transport of poly(epsilon-caprolactone) segments decelerating growth rate. The mechanical properties of polymers were investigated using DMA and nanoindentation. It shows that the insertion of hard poly(cyclohexene carbonate) segments improves Young's modulus and heat resistance but reduces hardness of copolymers. [GRAPHICS] .
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