Preparation of single-site tin(IV) compounds and their use in the polymerization of ε-caprolactone

Autor:	Begum Canan Yildiz, Asgar Kayan
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Single-site tin catalyst carboxylates ε-caplolactone ring-opening NMR Polymers and polymer manufacture TP1080-1185
Zdroj:	Designed Monomers and Polymers, Vol 20, Iss 1, Pp 89-96 (2017)
Druh dokumentu:	article
ISSN:	1568-5551 15685551
DOI:	10.1080/15685551.2016.1231032
Popis:	Butyltin(IV) carboxylate compounds were obtained by reactions of butyltrichlorotin(IV) with potassium pivalate, perfluoroheptanoate, methacrylate, 2,6-pyridinedicarboxylate, and phthalate. The synthesized complexes were fully characterized by nuclear magnetic resonance (1H-, 13C-NMR), Fourier transform infrared (FTIR), mass spectroscopies (MS) and elemental analysis. These tin complexes were used as catalysts for the ring opening polymerization of ε-caplolactone and the conversion of monomers to polymers was completed in just 1 h. The structures of polymers were characterized by a combination of spectroscopic techniques (NMR, FTIR, MS), differential scanning calorimeter (DSC) and gel permeation chromatography. In this study, the ε-caplolactone polymers with different average molecular weights between 5000 and 40,000 Da having a regular structure were obtained.
Databáze:	Directory of Open Access Journals
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