摘要
本文用红外光谱法对固相氯化法合成的氯化聚乙烯的结晶结构进行了研究。测得了在不同条件下合成的氯化聚乙烯以及它们在热处理重结晶后的结晶度。结果指出,在80℃固相氯化反应主要在无定形区发生,而在120℃氯化反应已不局限于无定形区了。如果是用两步法固相氯化,则结晶结构的破坏主要同第二步氯化温度有关。
In this paper,the crystalline structures of CPE synthetized by solid-phasechlorination were studied by infrared spectroscopy.The crystallinity of CPEsynthetized under different conditions and its recrystallinity after heat treat-ment are measured.The experiments show that the solid-phase chlorination.at 80℃ mainly occurs in amorphous regions,but at 120℃ it occurs in and be-yond the amorphous regions.If the solid-phase chlorination is processed intwo steps,the destruction of crystalline structures mainly depends on the tem-perature of chlorination in the second step.
出处
《中国塑料》
CAS
CSCD
1992年第4期46-49,共4页
China Plastics
