Taking PEN prepolymer slices which are crystallized in advance as raw material,adopting experimental method,researches the effect of reaction temperature on PEN solid phase polycondensation reaction.
英
美
- 为了提高PEN的生产质量;需要从宏观的角度来研究各种因素上世纪对缩聚反应的影响.;以经过预先结晶的PEN预聚体切片为原料;采用实验的方法;研究了反应温度对PEN固相缩聚反应的影响