SYNTHESIS OF SILICON-CONTAINING POLYURETHANE BY A NON-CARBOTHERMAL METAL DIRECTLY FROM SiO2 AND CHARACTERIZATION OF ITS STRUCTURE

SONG Jianhua; ZHANG Yonghua; LIU Anhua; GONG Kecheng

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SYNTHESIS OF SILICON-CONTAINING POLYURETHANE BY A NON-CARBOTHERMAL METAL DIRECTLY FROM SiO2 AND CHARACTERIZATION OF ITS STRUCTURE

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS OF SILICON-CONTAINING POLYURETHANE BY A NON-CARBOTHERMAL METAL DIRECTLY FROM SiO2 AND CHARACTERIZATION OF ITS STRUCTURE
- Acta Polymerica Sinica Issue 6, Pages: 811-813(2001)
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- Published：20 December 2001，
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SONG Jianhua, ZHANG Yonghua, LIU Anhua, GONG Kecheng. SYNTHESIS OF SILICON-CONTAINING POLYURETHANE BY A NON-CARBOTHERMAL METAL DIRECTLY FROM SiO2 AND CHARACTERIZATION OF ITS STRUCTURE. [J]. Acta Polymerica Sinica (6):811-813(2001)
DOI：

SONG Jianhua, ZHANG Yonghua, LIU Anhua, GONG Kecheng. SYNTHESIS OF SILICON-CONTAINING POLYURETHANE BY A NON-CARBOTHERMAL METAL DIRECTLY FROM SiO2 AND CHARACTERIZATION OF ITS STRUCTURE. [J]. Acta Polymerica Sinica (6):811-813(2001) DOI：

摘要

Abstract

A new technical approach to the synthesis of novel silicon-containing polyurethane by the noncarbothermal method directly from SiO2 was studied．Firstly a high reactive pentacoordinate organic silicon complex [(KSi(OCH2CH2O)2(OCH2CH2OH)] was prepared

by means of the reaction of a high surface area silica with ethylene glycol and petassium hydroxide．Then a novel tetracoordinate silicon(OCH2)CH2O)Si(OCH2CH2OH)(OCH2CH2OCH2CH2OH) was synthesized by the reaction of lCH2CH2OH with reactive pentacoordinate silicon complex．Lastly a novel silicon-containing polyurethane was synthesized by low-temperature solution condensation between tetracoordinate silicon and 2

4-toluene diisocyanate in dimethyl sulfoxide．The product was characterized and analyzed by FTIR

DSC

GPC etc．The IR spectra exhibited a characteristic strong absorption band for ester carbonyl at 1724.05cm-1. TG analysis showed a better thermal stability．DSC curves declared that its Tg was 115.09℃

GPC analysis showed that the molecular weight of silicon-containing polyurethane is between several ten thousand and a hundred thousand．

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配位硅聚氨酯深液缩聚合成结构表征

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Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials Sichuan, Sichuan University

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