EADC/H2O/DMF Initiator System of Butyl Rubber

doi:10.3969/j.issn.1006-396X.2012.05.007

Journal of Petrochemical Universities ›› 2012, Vol. 25 ›› Issue (5): 25-28.DOI: 10.3969/j.issn.1006-396X.2012.05.007

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EADC/H₂O/DMF Initiator System of Butyl Rubber

1.College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029,  P.R.China; 2. Beijing Institute of Petrochemical Technology, Beijing 102617, P.R.China

Received:2012-05-21 Published:2012-10-25 Online:2012-10-25

EADC/H2O/DMF引发体系对丁基橡胶的影响

郑宇¹,李树新²,郭文莉²,王颖珊²,高敏¹,许良瑞¹

(1.北京化工大学材料科学与工程学院,北京100029;2.北京石油化工学院,北京102617)

作者简介:郑宇（１９８８－），男，山东临沂市，在读硕士

Abstract

Abstract: The butyl rubber was synthesized by the solution polymerization method, with H2O/EADC as initiator system, hexane and chloride methane as solvent, at -90 ℃. The effects of the initiator concentration, ratio and the third component (DMF) on butyl rubber properties were examined. The results show that optimum condition is initiator concentration 0.085%,polymerization 40 min,n(EADC)/n(H₂O)/n(DMF) is 8.28∶1∶0.75, butyl rubber of which molecular weight is 29.54×10⁴ g/mol,MWD is 1.58.

Key words: Butyl rubber, , H₂O/EADC system, , Nucleoplic reagent

摘要： 以水和二氯乙基铝(EADC)为引发体系，己烷和氯甲烷为溶剂，在-90 ℃的条件下，通过溶液法合成丁基橡胶。考察引发剂摩尔分数、引发剂配比、第三组分(DMF)含量等对丁基橡胶分子质量、分子质量分布、单体转化率的影响。结果表明，[CM（9]引发剂摩尔分数在[CM）]0.085%、聚合40 min，在n（EADC）/n（H2O）/n(DMF)= 8.28∶1∶0.75时，得到数均分子质量为 29.54×104 g/mol，分子质量分布为1.58的丁基橡胶。

关键词: 丁基橡胶, , H₂O/EADC体系, , 亲核试剂

ZHENG Yu,LI Shu-xin,GUO Wen-li,et al. EADC/H₂O/DMF Initiator System of Butyl Rubber[J]. Journal of Petrochemical Universities, 2012, 25(5): 25-28.

郑宇,李树,郭文莉,王颖珊,高敏,许良瑞. EADC/H2O/DMF引发体系对丁基橡胶的影响[J]. 石油化工高等学校学报, 2012, 25(5): 25-28.

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EADC/H₂O/DMF Initiator System of Butyl Rubber

EADC/H2O/DMF引发体系对丁基橡胶的影响

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