| AIBN用量对聚丙烯腈立构的影响 |
| |
| 引用本文： | 吴勇,林农,李文刚. AIBN用量对聚丙烯腈立构的影响[J]. 高分子材料科学与工程, 2009, 0(12) |
| |
| 作者姓名： | 吴勇 林农 李文刚 |
| |
| 作者单位： | 东华大学纤维材料改性国家重点实验室东华大学材料学院; |
| |
| 摘 要： | 通过13C-NMR和IR研究了偶氮二异丁腈(AIBN)引发剂用量对丙烯腈均相溶液聚合产物立体结构的影响。利用13C-NMR中CH基团的吸收峰和IR上特定吸峰波的强度对聚合物的三元空间立体结构情况进行了定量的表征;同时,利用Randall方程及核磁碳谱的数据计算了聚合物的内消旋结构和外消旋结构的数均序列长度。研究表明,随着AIBN用量的增加,聚合产物中全同立构体的含量增加,内消旋结构的数均序列长度增长。
|
| 关 键 词： | 偶氮二异丁腈 聚丙烯腈 立构 |
Effects of the Initiator Dosage on Stereoregularity of PAN |
| |
| WU Yong,LIN Nong,LI Wen-gang. Effects of the Initiator Dosage on Stereoregularity of PAN[J]. Polymer Materials Science & Engineering, 2009, 0(12) |
| |
| Authors: | WU Yong LIN Nong LI Wen-gang |
| |
| Affiliation: | WU Yong,LIN Nong,LI Wen-gang (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Material Science and Engineering,Dong Hua University,Shanghai 201620,China) |
| |
| Abstract: | The article investigated into the stereoregularity of the polymer synthesized by acrylonitrile(AN) and itaconic acid(IA) in homogeneous phase solution with different dosage of azodiisobutyronitrile(AIBN) which used as initiator.The CH group of polyacrylonitrile copolymer repeat unit gave rise to three well resolved peaks in 13C-NMR spectra,which were used to determine triad tacticity.Meanwhile,the article calculated the number-average sequence length of meso and racemic configuration of polymer with the tri... |
| |
| Keywords: | azodiisobutyronitrile(AIBN) acrylonitrile copolymer stereoregularity |
| 本文献已被 CNKI 等数据库收录！ |
|
