文章摘要
利用1H-核磁共振谱计算环化丁苯橡胶的环化度和溶剂参与量
Calculation of cyclization degree and incorporated solvent content of cyclized SBR by 1H-NMR
  
DOI：
中文关键词: 环化丁苯橡胶  1H-核磁共振  环化度  溶剂参与量
英文关键词: cyclized SBR  1H-NMR  cyclization degree  incorporated solvent content
基金项目:国家自然科学基金资助项目(29574179)
作者单位
王朝阳 华南理工大学材料研究所 
黄学品 华南理工大学材料研究所 
杨继华 中国科学院长春应用化学研究所 
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中文摘要:
      对环化丁苯橡胶的1H-核磁共振谱进行了归属分析，并推导出计算环化度和溶剂参与量的公式。设环化丁苯橡胶的1H-核磁共振谱图中化学位移为7.0，5.4，4.9和3.0～0处的峰强度分别为A，B，C和D，则环化丁苯橡胶中丁二烯总物质的量X)=(B+C+D-2A)/7.1，未环化的丁二烯物质的量(Y)=B/2+C/4，参与反应的二甲苯物质的量(Z)=(17.5A-B-C-D)/46.5，环化度(P)=1-Y/X，溶剂参与量(W)=91.6Z/X 。
英文摘要:
      1H-NMR spectra of cyclized SBR was analysed and the equations to calculate the cyclization degree and the incorporated solvent content by 1H-NMR method were derived.The total butadiene content in cyclized SBR(x)=(B+C+D-2A)/7.1，the uncyclized butadiene content(Y)=B/2+C/4，the incorporated dimethyl benzene content(Z)=(17.5A-B-C-D)/46.5，the cyclization degree(P)=1-Y/X and the incorporated solvent content(W)=91.6Z/X，if the peak densities at the 7.0，5.4，4.9 and 3.0～0 chemical shifts in 1H-NMR spectra of cyclized SBR were A，B，C and D respectively.
Author NameAffiliation
WANG Chao-yang South China University of Technology 
HUANG Xue-pin South China University of Technology 
YANG Ji-hua Changchun Institute of Applied Chemistry 
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