Poly(butylene terephthalate) oligomers containing organosilane end groups

Abstract

Oligomers with poly(buty1ene terephthalate) (PBT) containing organosilane extremities were prepared by reacting an a-allylic oligomer of PBT with silanethiols or with silanes. The a-allylic oligomer of PBT was synthesized by condensation of ally1 alcohol, 1,4-butanediol and terephthaloyl dichloride. All the oligomers were characterized by means of proton nuclear magnetic resonance, Fourier-transform infrared spectroscopy, size-exclusion chromatography, gas chromatography and high-performance liquid chromatography. Their thermal properties were also investigated.