Synthesis and thermal properties of novel room temperature vulcanized (RTV) silicone rubber containing POSS units in polysioxane main chains
Synthesis and thermal properties of novel room temperature vulcanized (RTV) silicone rubber containing POSS units in polysioxane main chains
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聚硅氧烷主链含POSS单元的新型室温硫化（RTV）硅橡胶的合成及热性能
DOI：
10.1007/s10965-013-0245-y
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发表时间：
2013-08
影响因子：
2.8
通讯作者：
Yu Dang
中科院分区：
文献类型：
--
作者：
Yunhui Shi;Guangsu Huang;Yufeng Liu;Yanbin Qu;Dian Zhang;Yu Dang
首先合成了乙氧基苯基多面体倍半硅氧烷(DOPO)，然后与聚二甲基硅氧烷(PDMS)共聚，最后硫化制备了室温硫化(RTV)硅橡胶(b-POS-SIR)。用傅里叶变换红外光谱(FT-IR)、核磁共振(NMR)、广角X射线衍射仪(WAXD)和动态力学分析(DMA)对其结构和性能进行了表征和评价。通过热重分析(TGA)和傅立叶变换红外光谱(FTIR)相结合的方法研究了其热降解机理。结果表明，随着DOPO的加入，b-POS-SIR的热降解温度(5wt%)显著提高，在氮气和空气中的热降解温度分别比PDMS橡胶(PSiR)高60℃和20℃。利用热重-红外光谱联用技术研究了不同气氛下降解机理的变化。
Ethyoxyl-phenyl polyhedral oligomeric silsesquioxane (DOPO) was synthesized at first and then copolymerized with polydimethylsiloxane (PDMS) and finally cured to prepare room temperature vulcanized (RTV) silicone rubber (b-POS-SiR). Their structures and properties are characterized and evaluated by fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), wide angle X-Ray diffraction (WAXD), and dynamic mechanical analysis (DMA). The thermal degradation mechanisms are investigated via thermal gravimetric analysis (TGA) coupled with FTIR analyses. The results show, that the thermal degradation temperatures (5 mass % loss) of the b-POS-SiR are significantly improved with addition of DOPO, e.g., 60 °C and 20 °C higher in nitrogen and in air, respectively, for the b-POS-SiR with 5 wt% DOPO compared that of PDMS rubber (PSiR). The variety of degradation mechanisms in the different atmospheres are also studied by using TGA coupled with FTIR.
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影响因子：
5.5
作者：
J. Lewicki;M. Patel;P. Morrell;J. Liggat;J. Murphy;R. Pethrick
通讯作者：
J. Lewicki;M. Patel;P. Morrell;J. Liggat;J. Murphy;R. Pethrick
影响因子：
9.1
作者：
Liu, Y. R.;Huang, Y. D.;Liu, L.
通讯作者：
Liu, L.
影响因子：
4.6
作者：
Huang, JC;He, CB;Siow, YP
通讯作者：
Siow, YP
影响因子：
5.5
作者：
Wright, ME;Petteys, BJ;Brunsvold, A
通讯作者：
Brunsvold, A
DOI：
10.1002/pol.1969.160070308
发表时间：
1969-01-01
期刊：
JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS
影响因子：
--
作者：
THOMAS, TH;KENDRICK, TC
通讯作者：
KENDRICK, TC