[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.7473/EC.2013.48.1.61

Highly active and trans-1,4-specific polymerization of 1,3-butadiene catalyzed by bis(benzimidazolyl)amine chromium complexes activated with methylaluminoxane

Moon, Byeong Kyu (The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University)
Song, Ga Young (The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University)
Zhang, Lin (The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University)
Shin, Jin Young (The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University)
Chang, Hyuk Chul (The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University)
Shim, Sang Eun (Department of Chemical Engineering, Inha University)
Yun, Ju Ho (Enviromental Materials & Components R&D Center, Korea Automotive Technology Institute)
Kim, Il (The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University)

Publication Information

Elastomers and Composites / v.48, no.1, 2013 , pp. 61-66 More about this Journal

Abstract

A family of Cr(III) complexes supported on tridentate dibenzimidazolyl ligands having a general formula: $[N(CH_3)(CH_2)_2(Bm-R)_2]CrCl_3$ [where Bm = benzimidazolyl, R = H (3a); -Me(3b); -Bn (3c)] have been synthesized and utilized them for the trans-1,4-specific polymerizations of 1,3-butadiene (BD), activated with methylalumoxane (MAO). The activity of BD polymerizations was sensitive to the type of ligand on the Cr metal, so that the activity decreases in the order of 3a > 3c > 3b. All the catalysts combined with MAO yielded polybutadienes with perfect trans-1,4 structure with moderate molecular weight.

Keywords

polymerization; 1,3-butadiene; organometallic chromium complexes; trans-1,4-polybutadiene; ligand;

Citations & Related Records

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