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International Journal of Polymer Science
Volume 2016 (2016), Article ID 8104838, 7 pages
http://dx.doi.org/10.1155/2016/8104838
Research Article

Polyvinylpolypyrrolidone Supported Brønsted Acidic Catalyst for Esterification

School of Science, Shenyang University of Technology, Shenyang 110870, China

Received 16 August 2016; Revised 21 October 2016; Accepted 2 November 2016

Academic Editor: Akshat Tanksale

Copyright © 2016 Song Wang and Chengcheng Tian. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A polyvinylpolypyrrolidone (PVPP) supported Brønsted acidic catalyst (PVPP-BSHSO4) was prepared by coupling SO3H-functionalized polyvinylpolypyrrolidone with H2SO4 in this work. After the characterization through FT-IR, FESEM, TG, BET, and elemental analysis, it was found that 1,4-butane sultone (BS) and sulfuric acid reacted with PVPP and were immobilized on PVPP surface. The prepared PVPP-BSHSO4 catalyst shows high catalytic activity for a series of esterification reactions and could be separated from the reacted mixture easily. Moreover, this catalyst could be recycled and reused for six times without significant loss of catalytic performance.