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Pt doped H 3 PW 12 O 40 /ZrO 2 as a heterogeneous and recyclable catalyst for the synthesis of carbonated soybean oil
Author(s) -
Wang Junwei,
Zhao Yuhua,
Li Qifeng,
Yin Ning,
Feng Yuelai,
Kang Maoqing,
Wang Xinkui
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35418
Subject(s) - catalysis , soybean oil , carbonation , reusability , epoxidized soybean oil , heterogeneous catalysis , homogeneous , nuclear chemistry , materials science , chemistry , chemical engineering , organic chemistry , mathematics , programming language , raw material , food science , software , combinatorics , computer science , engineering
Carbonated soybean oil (CSBO) is a precursor of nonisocyanate polyurethanes (NIPUs). So far, the ruling catalysts for CSBO synthesis through the coupling of epoxidized soybean oil (ESBO) with CO 2 are homogeneous ones. In this work, a heterogeneous catalyst, 5 wt % H 3 PW 12 O 40 (PW)/ZrO 2 was investigated for the coupling reaction and proved quite efficient. However, the catalyst showed poor reusability due to the difficult elimination of bulky by–products retained in the spent catalyst. To remedy this deficiency, the 5 wt % PW/ZrO 2 was modified with 0.3% Pt. It is found that Pt addition markedly improved the reusability of the 5 wt % PW/ZrO 2 without loss in carbonation activity. An ESBO conversion of 78.3% was obtained at the end of third recycle, indicating that Pt species incorporated could promote the removal of the by‐products and hence protect the active centres of 5 wt %PW/ZrO 2 catalyst. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012