聚丙烯腈空间立构在预氧化进程中的作用

石鑫1;邹均庭2;王雨松2;昌志龙1;谢怀玉1;徐樑华1

北京化工大学学报(自然科学版) ›› 2011, Vol. 38 ›› Issue (3) : 55-59.

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北京化工大学学报(自然科学版) ›› 2011, Vol. 38 ›› Issue (3) : 55-59.
材料科学与工程

聚丙烯腈空间立构在预氧化进程中的作用

  • 石鑫;邹均庭;王雨松;昌志龙;谢怀玉;徐樑华
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Effect of PAN stereospecificity on the preoxidation process

  • SHI Xin1;ZOU JunTing2;WANG YuSong2;CHANG ZhiLong1;XIE HuaiYu1;XU LiangHua1
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摘要

采用尿素模板聚合法制备出不同等规度的聚丙烯腈大分子,并利用差示扫描量热(DSC)、热台红外(FT-IR)和核磁共振(13C-NMR)等表征方法分析了不同等规度的PAN大分子在预氧化进程中的作用。结果表明,在惰性气氛下,低等规度的PAN大分子容易发生环化反应;在空气气氛下,高等规度的PAN大分子有利于发生氧化反应,且氧的存在,可促进环化反应的进行。

Abstract

PAN samples with different isotacticities were synthesized by γ-ray irradiation in a urea canal complex and the effect of PAN stereospecificity on the preoxidation process was studied by DSC, FT-IR and13C-NMR. The experimental results showed that the atactic structure underwent cyclization in N2 at low temperature and that the isotactic structure readily combined with oxygen, promoting the cyclization reaction of PAN during the preoxidation process.

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石鑫1;邹均庭2;王雨松2;昌志龙1;谢怀玉1;徐樑华1. 聚丙烯腈空间立构在预氧化进程中的作用[J]. 北京化工大学学报(自然科学版), 2011, 38(3): 55-59
SHI Xin1;ZOU JunTing2;WANG YuSong2;CHANG ZhiLong1;XIE HuaiYu1;XU LiangHua1. Effect of PAN stereospecificity on the preoxidation process[J]. Journal of Beijing University of Chemical Technology, 2011, 38(3): 55-59

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