A convenient method for preparation of hydroxyl silicone oils with ring opening polymerization of octamethylcyclotetrasiloxane (D4)

被引：11

作者：

Yang, Xiongfa ^{[1
]}

Chen, Zhonghong ^{[1
]}

Liu, Jia ^{[1
]}

Chen, Qiong ^{[1
]}

Liu, Qin ^{[2
]}

Luo, Mengxian ^{[1
]}

Lai, Guoqiao ^{[1
]}

机构：

[1] Hangzhou Normal Univ, Educ Minist, Key Lab Organosilicon Chem & Mat Technol, Hangzhou, Zhejiang, Peoples R China

[2] Tongde Hosp Zhejiang Prov, Hangzhou, Zhejiang, Peoples R China

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 2016年 / 191卷 / 01期

关键词：

Hydroxyl silicone oil; rare earth solid super acid; ring-opening polymerization; octamethylcyclotetrasiloxane; SO42-/TIO2/LN(3+); HYDROLYSIS; CATALYSTS;

D O I：

10.1080/10426507.2014.986269

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Hydroxyl silicone can be prepared at a mild polymerization temperature with a moderately high yield via ring opening polymerization of D4 catalyzed by rare earth solid super acid SO42-/TiO2/Ln(3+). The outstanding advantage of the method was that the viscosities of the products can be conveniently controlled by adjusting polymerization time, temperature, and the amount of water. The products were characterized by size-exclusion chromatography, H-1-nuclear magnetic resonance, and Fourier transform-infrared spectroscopy. A cationic coordination-insertion polymerization mechanism was also proposed. [GRAPHICS] .

引用

页码：117 / 122

页数：6

共 13 条

[1]

Bokerman G. N., 1991, US Pat, Patent No. 5075479

[2] Use of solid superacid (Sulphated SnO2) as efficient catalyst in facile transesterification of ketoesters [J].

Chavan, SP ;

Zubaidha, PK ;

Dantale, SW ;

Keshavaraja, A ;

Ramaswamy, AV ;

Ravindranathan, T .

TETRAHEDRON LETTERS, 1996, 37 (02) :233-236

[3] Hydrolysis of cellulose to glucose by solid acid catalysts [J].

Huang, Yao-Bing ;

Fu, Yao .

GREEN CHEMISTRY, 2013, 15 (05) :1095-1111

[4]

Lewis R. N., 1982, A CA Pat, Patent No. 1125780

[5] Activity and mechanism of rare earth solid superacid for initiating ring-opening polymerization of chloromethyl thiirane [J].

Li, WS ;

Shen, ZQ ;

Zhang, YF .

EUROPEAN POLYMER JOURNAL, 2001, 37 (06) :1185-1190

[6] Fatty acid methyl ester synthesis catalyzed by solid superacid catalyst SO42-/ZrO2-TiO2/La3+ [J].

Li, Yan ;

Zhang, Xiao-Dong ;

Sun, Li ;

Zhang, Jie ;

Xu, Hai-Peng .

APPLIED ENERGY, 2010, 87 (01) :156-159

[7]

Ottlinger R., 1988, US Pat, Patent No. 4762937

[8]

Petersen L. P., 1981, US Pat, Patent No. 4250290

[9] Ring-opening polymerization of chloromethylthiirane with So(4)(2-)/TiO2/Nd3+ as initiator [J].

Shen, ZQ ;

Li, WS ;

Zhang, FY ;

Zhang, YF ;

Shen, LF ;

Yuan, HZ .

MACROMOLECULAR RAPID COMMUNICATIONS, 1997, 18 (09) :769-773

[10] RECENT PROGRESS IN SOLID SUPERACID [J].

YAMAGUCHI, T .

APPLIED CATALYSIS, 1990, 61 (01) :1-25

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