The cationic ring-opening polymerization of tetrahydrofuran with 12-tungstophosphoric acid.
The cationic ring-opening polymerization of tetrahydrofuran with 12-tungstophosphoric acid.
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DOI：
10.3390/molecules15031398
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发表时间：
2010-03-08
期刊：
影响因子：
--
通讯作者：
Al-Shahri H
中科院分区：
文献类型：
--
作者：
Aouissi A;Al-Deyab SS;Al-Shahri H
以H3PW12O40·13H2O为固体酸催化剂，在20℃下催化了四氢呋喃阳离子开环聚合反应。考察了乙酸酐与催化剂的配比、反应时间和载体对聚合反应的影响。研究发现，聚合物的产率和粘度取决于乙酸酐的比例，而乙酸酐的存在是开环所必需的。氧化铝负载杂多酸的催化活性结果表明，Brønsted酸位比Lewis酸位对阳离子开环聚合更有效。
The cationic ring-opening polymerization reaction of tetrahydrofuran at 20 °C was catalyzed by H3PW12O40·13H2O as solid acid catalyst. The effect of the proportions of acetic anhydride and catalyst, reaction time and support on the polymerization reaction was investigated. It has been found that the yield and the viscosity of the polymer depend on the proportion of acetic anhydride, the presence of the latter in the reactant mixture being required for the ring-opening. The catalytic activity of the alumina-supported heteropolyacid results showed that Brønsted acid sites are more effective than Lewis ones for the cationic ring-opening polymerization.
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影响因子：
3
作者：
Chen, Y;Zhang, GL;Zhang, HZ
通讯作者：
Zhang, HZ
影响因子：
2.1
作者：
Chow, HF;Chan, IYK;Ng, MK
通讯作者：
Ng, MK
影响因子：
2.1
作者：
DALE, J
通讯作者：
DALE, J
影响因子：
4.6
作者：
ROCCHICCIOLIDELTCHEFF, C;FOURNIER, M;THOUVENOT, R
通讯作者：
THOUVENOT, R
影响因子：
5.5
作者：
Kozhevnikov, IV
通讯作者：
Kozhevnikov, IV