Syntheses of Poly(butylene succinate) by Means of Non-Toxic Catalysts

Autor:	Hans R. Kricheldorf, Hicham Qayouh, Takao Yashiro, Mohammed Lahcini, Peter F. W. Simon
Rok vydání:	2010
Předmět:	inorganic chemicals Materials science Molar mass Polymers and Plastics Diol Succinic anhydride General Chemistry Polybutylene succinate Catalysis Polyester chemistry.chemical_compound Monomer Decalin chemistry Polymer chemistry Materials Chemistry Ceramics and Composites Organic chemistry
Zdroj:	Journal of Macromolecular Science, Part A. 47:503-509
ISSN:	1520-5738 1060-1325
DOI:	10.1080/10601321003741875
Popis:	The usefulness of bismuth, calcium, magnesium and zinc salts for the preparation of poly(butylene succinate), PBSu, was studied. Two different approaches were compared. Firstly, 1,4-butanediol (or in a few experiments ethanediol) dimethyl succinate were condensed at temperatures up to 240°C in the presence of Bi2O3. Regardless of the feed ratio, only low molar mass polyesters having two diol endgroups were obtained. Secondly, 1,4-butanediol and succinic anhydride were polycondensed in refluxing decalin with azeotropic removal of water. BiCL3, BiBr3, BiI3, and Bi-triflate were used as catalyst and the monomer/catalyst ratio was varied. The highest molar masses were achieved with BiCl3. Analogous polycondensations catalysed with ZnCl2, Zn-triflate, MgCl2, Mg-triflate and CaCl2 were unsuccessful. Yet the BiCl3, decalin method was also successfully applied to the combination of succinic anhydride and 1,5-pentanediol.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9e3662e94a3181acf95fc8b753dfc59 https://doi.org/10.1080/10601321003741875 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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