Synthesis of plasticizing polyesters of dimer acid and propane–diol

Wiley - Tập 50 Số 4 - Trang 693-697 - 1993
U. D. N. Bajpai1, Ms. Nivedita1
1Polymer Research Laboratory, Department of P.G. Studies & Research in Chemistry, Rani Durgavati Vishwavidyalaya, Jabalpur‐482 001, India

Tóm tắt

AbstractThe polyesterification of dimer acid with propane–diol under different experimental conditions has been studied to obtain the optimum conditions for synthesizing the poly(propane–diol) dimerate plasticizers. The effect of varying molar ratio, temperature, and catalyst concentration on the course of the reaction, acid number, intrinsic viscosity, and molecular weight of the resultant polyester has been investigated. p‐Toluene sulfonic acid (PTSA) was found to be an effective catalyst for the polyesterification reaction. The kinetics of polyesterification in the presence and absence of a catalyst has been found to follow the second‐order rate equation in equimolar concentrations of the reactants. © 1993 John Wiley & Sons, Inc.

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Thông tin xuất bản

Wiley

Tập 50 Số 4

693-697

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