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synthesis, characterization and reactivity ratio study of poly(di(tri-n-butyltin) citraconate-co-n-vinylimidazole)合成、表征和反应率的研究聚(di(tri-n-butyltin)citraconate-co-n-vinylimidazole).pdf

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Molecules 2010, 15, 4750-4756; doi:10.3390/molecule OPEN ACCESS molecules ISSN 1420-3049 /journal/molecules Article Synthesis, Characterization and Reactivity Ratio Study of Poly(di(tri-n-butyltin) citraconate-co-N-vinylimidazole) Salem S. Al-Deyab *, Mohamed H. El-Newehy * and Ali M. Al-Hazmi Petrochemical Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, P.O. Box 2455, Saudi Arabia * Authors to whom correspondence should be addressed; E-Mail: mnewehy@(M.H.E.N.); ssdeyab@.sa(S.S.A.D.); Tel.: +966-1-4677164 (M.H.E.N); +966-1-4675899 (S.S.A.D.); Fax: +966-1-4675992. (S.S.A.D.); Received: 13 June 2010; in revised form: 28 June 2010 / Accepted: 30 June 2010 / Published: 7 July 2010 Abstract: The organotin monomer di(tri-n-butyltin) citraconate (DTBTC, I) was synthesized. Subsequently this monomer was copolymerized with N-vinylimidazole (VI) using a free radical technique. The overall conversion was kept low (≤14% wt/wt) for all studied samples and the copolymer composition was determined from tin analysis using the Gilman and Rosenberg method. The synthesized monomer and copolymer were further characterized by elemental analysis, 1H- and 13C-NMR, and FTIR spectroscopy. Keywords: bis(tri-n-butyltin) oxide; citraconate; N-vinyl imidazole; reactivity ratio 1. Introduction A copolymer’s composition is an important factor in the evaluation of its utility [1-4]. Controlling the polymer property parameters, such as copolyme

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