Citation: WU Rongrui, DENG Yuan, HUANG Guanbao, DENG Jianyuan, LI Huiping. STUDY ON SOLID STATE POLYCONDENSATION OF POLYETHYLENE TEREPHTHALATE COPOLYMERS*[J]. Chinese Journal of Polymer Science, ;1994, 12(1): 80-86. shu

STUDY ON SOLID STATE POLYCONDENSATION OF POLYETHYLENE TEREPHTHALATE COPOLYMERS*

Received Date: 29 September 1992

The kinetic data of solid state polycondensation of PET and its copolymers are determined.It is shown that the reaction rate of copolycondensation is higher than that of PET polyconden-sation, and increases with the comonomers content. But the reaction rate of copolycondensationin melt state of this kind of copolymers is lower than that of PET. It is considered that the chemi-cal reactivity of comonomer is the main factor which affect the polycondensation in melt state,whereas the aggregative structure of the polymer is the main factor in solid state.The crystallinity and crystallite size of the copolymers have been measured by X-ray method.
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