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Citation: Qi Li, Song Yongxian, Peng Xinsheng, Cben Donglin. ISOTHERMAL CRYSTALLIZATION AND MELTING OF ETHYLENE OXIDEPROPYLENE OXIDE COPOLYMER[J]. Chinese Journal of Applied Chemistry, ;1993, 10(6): 66-70. shu

ISOTHERMAL CRYSTALLIZATION AND MELTING OF ETHYLENE OXIDEPROPYLENE OXIDE COPOLYMER

1.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun

Received Date: 27 March 1993
Available Online: 18 September 1993

The kinetics of isothermal crystallization of ethylene oxide and propylene oxide copolymers has been investigated by differential scanning calorimetry. The values of Avrami exponent n were found as 1.8~2.4. The nueleanlon process in crystallization temperature takes place according to regime Ⅱ The eqilibrium melting points of EO/PO copolymer decrease with increasing content of PO. The crystal growtb rate Gis in dependence on the composition of the copolymer and the crystalization temparature.
- ethylene oxide,
- propylene oxide,
- copolymer,
- isothermal crystallization,
- kinetics
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