ISSN:
0887-624X
Schlagwort(e):
polymerization
;
dienes
;
catalyst
;
lanthanides
;
mechanism
;
microstructures
;
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The polymerization of butadiene with the catalytic system NdCl3 · 3TBP-(1C4H9)2AlH (TBP-tributyl phosphate) was studied. With regard to the anti-syn-isomerization of both free- and monomer-complexed active centers, the kinetic scheme of the propagation reaction was shown to afford adequate descriptions of the experimental dependence of the polymer microstructure on the monomer concentration. Following the results of the quantum-chemical calculations, it was assumed that the free molecules (1C4H9)2AlH coordinated competitively with the monomer molecules on the active centers in solution, which finally led to lower reactivity of the active centers. © 1993 John Wiley & Sons, Inc.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pola.1993.080311001
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