| SYNTHESIS，PROPERTY AND HEAT STABILITY FO RPOLYVINYLCHLORIDSOFANTIMONYTRIS（MERCAPTOACIDESTER） |
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| 作者姓名： | Huang Kelong Liu Younian Gu Yingying Shu Wanyin |
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| 作者单位： | Department of Chemistry，Central South University of Technology，Changsha，410083，China |
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| 摘 要： | ＳＹＮＴＨＥＳＩＳ，ＰＲＯＰＥＲＴＹＡＮＤＨＥＡＴＳＴＡＢＩＬＩＴＹＦＯＲＰＯＬＹＶＩＮＹＬＣＨＬＯＲＩＤＳＯＦＡＮＴＩＭＯＮＹＴＲＩＳ（ＭＥＲＣＡＰＴＯＡＣＩＤＥＳＴＥＲ）ＳＹＮＴＨＥＳＩＳ，ＰＲＯＰＥＲＴＹＡＮＤＨＥＡＴＳＴＡＢＩＬＩＴＹＦＯＲＰ...
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| 收稿时间： | 20 June 1994 |
Synthesis, property and heat stability for polyvinyl chlorids of antimony tris (mercaptoacid ester) |
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| Huang Kelong, Liu Younian ,Gu Yingying,Shu Wanyin.Synthesis, property and heat stability for polyvinyl chlorids of antimony tris (mercaptoacid ester)[J].Journal of Central South University of Technology,1994,1(1):45-50. |
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| Authors: | Kelong Huang Younian Liu Yingying Gu and Wanyin Shu |
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| Affiliation: | (1) Department of Chemistry, Central South University of Technology, 410083 Changsha, China |
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| Abstract: | Antimony mercapide heat stabilizer for polyvinyl chloride is synthesized from antimony trioxide and mercaptocarboxylic acid
esters, HS(CH2)
n
COOi-C8H17(n=1–2) at 100–115°C in the presence of 0.5%–1% an organic acid catalyst. Some physicochemical constants of the compounds, such
as density and refractive index, are determined. The complexes are hydrolabil in aqueous solutions and the bond of Sb-S is
weaker than that of Sb-O. The forming bond property of antimony tris (mercaptoacid ester) has been elucidated by measurement
of infrared spectra in comparison with mercapto carboxylic acid esters. The polyvinyl chloride resins containing antimony
mercaptide heat stabilizers, do not darken at elevated temperatures and exhibit a high degree of stability. It is proposed
that mercaptocarboxylic acid ester free radicals can esterify PVC microradicals at carbon atoms with upaired electrons.
Project supported by the Natural Science Foundation of Hunan Province
Synopsis of the first author Huang Kelong, associate professor, born in 1955, majoring in organometallic compounds or in the area of inorganic solid state
chemistry |
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| Keywords: | antimony tris (mercaptoacid ester) synthesis heat stabilizer polyvinyl chloride |
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