Studies on the Cationic Copolymerization of α-Pinene and Styrene with Complex SbCl3/AlCl3Catalyst Systems. I. Effects of the Polymerization Conditions on the Copolymerization Products

Autor:	Yunxiang Deng, Lichang Wang, Longmei Zeng, Ping Liu, Chaopan Peng, Jiang Lu
Rok vydání:	1996
Předmět:	Aluminium chloride Polymers and Plastics Chemistry Cationic polymerization General Chemistry Mole fraction Catalysis Styrene chemistry.chemical_compound Monomer Polymerization Polymer chemistry Materials Chemistry Ceramics and Composites Copolymer medicine medicine.drug
Zdroj:	Journal of Macromolecular Science, Part A. 33:995-1004
ISSN:	1520-5738 1060-1325
DOI:	10.1080/10601329608010900
Popis:	The copolymerization products of α-pinene and styrene were prepared with the compound catalyst system SbCl3/AlCl3 by changing the Sb/Al ratio, feeding monomer ratio, solvent, and polymerization temperature. The compositions of the copolymerization products were quantitatively characterized by the method of the combination of micro-ozonization and thin-layer chromatography in terms of the contents of the homopolymers and the copolymers containing high or low mole fractions of α-pinene, the yields of pure copolymer, and the monomer unit ratios (F 1) of copolymers. The results show that it was easier to obtain the higher yield (up to 80%) of the pure copolymer with the complex catalyst system than with AlCl3 alone. The F 1 values could be controlled between 30 and 56% under the following polymerization conditions: Sb/Al  1/2, α-pinene/styrene  70%, and the conversion of styrene  90%.
Databáze:	OpenAIRE
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