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


Yildiz B. C. , KAYAN A.

DESIGNED MONOMERS AND POLYMERS, cilt.20, ss.89-96, 2017 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 20
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1080/15685551.2016.1231032
  • Dergi Adı: DESIGNED MONOMERS AND POLYMERS
  • Sayfa Sayısı: ss.89-96

Özet

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 (H-1-, C-13-NMR), Fourier transform infrared (FTIR), mass spectroscopies (MS) and elemental analysis. These tin complexes were used as catalysts for the ring opening polymerization of epsilon-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 epsilon-caplolactone polymers with different average molecular weights between 5000 and 40,000 Da having a regular structure were obtained.