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Polymerization of acetylene and 1-alkynes by rare-earth coordination catalysts

✍ Scribed by Zhiquan Shen; Mujie Yang; Michael F. Farona


Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
118 KB
Volume
94
Category
Article
ISSN
0020-1693

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πŸ“œ SIMILAR VOLUMES


Polymerization of N-phenylmaleimide with
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## Abstract A highly active rare earth coordination catalyst composed of neodymium acetylacetonate, dibutylmagnesium, and hexamethylphosphoramide (mole ratio 1:7:14) for the polymerization of __N__‐phenylmaleimide (N‐PMI) was developed. The resulting poly(N‐PMI) has high molecular weight (__MΜ„__~n~

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A novel rare earth coordination system composed of lanthanide tri-Γ‘uoroacetates (Ln \ Y, Yb, Nd, Tm, Ho, La, Pr) and tri-Ln(CF 3 COO) 3 isobutylaluminium Al(i-Bu) was used as catalyst for the polymerization of 3 e-caprolactone (CL), D,L-lactide (DLLA) and their copolymerization. The inΓ‘uence of temp