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Paper Information

Journal:   IRANIAN POLYMER JOURNAL (ENGLISH)   May-June 2003 , Volume 12 , Number 3; Page(s) 217 To 235.
 
Paper: 

BIFUNCTIONAL NICKEL-OR COBALT-CONTAINING CATALYST-STABILIZERS FOR POLYBUTADIENE PRODUCTION AND STABILIZATION (PART I): KINETIC STUDY AND MOLECULAR MASS STEREOREGULARITY CORRELATION

 
 
Author(s):  NASIROV F. A.*
 
* Instiute of petrochemical processes, Azerbaijan National Academy of sciences, Baku-370025, Republic of Azerbaijan
 
Abstract: 

The polymerization of butadiene with catalytic dithiosystems, based on organic dithio ‎derivatives of Ni or Co and organoaluminium compounds was studied. It was shown ‎that these catalytic dithiosystems provide the preparation of the low-and high-‎molecular weight 1,4-cis-polybutadienes, high-molecular weight 1,4-cis + 1,2-and ‎syndiotactic 1,2-polybutadienes with high activity. The effect of nickel or cobalt and ‎monomer concentration, Al: Co ratio, temperature, polymerization time on ‎conversion, stereo regularity and molecular weight in the butadiene polymerization by ‎nickel-and cobalt-containing dithiosystems was studied. The regularities of ‎interrelated changes of polybutadiene microstructure and molecular masses in ‎synthesis in the presence of nickel-and cobalt-containing dithiosystems have been ‎investigated and explained‏.‏

 
Keyword(s): NICKEL-OR COBALT-DITHIODERIVATIVES, ORGANOALUMINIUM, DITHIOSYSTEMS, BUTADIENE POLYMERIZATION, POLYBUTADIENE, KINETIC REGULARITIES, MOLECULAR MASS-STEREOREGULARITY CORRELATION
 
References: 
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