
Polyhedral oligomeric silsesquioxanes (POSS) thermal …
2006年1月1日 · TGA curve in air for nitrogen-obtained ph-POSS residue. The amount (56% of 70% equals 39%) and visual aspect of this material is very close to the one obtained by direct heating of ph-POSS in air. This fact confirms the presence of free carbon in the structure that undergoes oxidation during the treatment in air.
Preparation and thermal degradation behavior of room …
2013年10月18日 · Room temperature vulcanized (RTV) silicone rubber-g-polyhedral oligomeric silsesquioxanes (POSS) was prepared and its thermal degradation behavior and thermo-oxidative stability were investigated by thermogravimetric analysis (TGA).
Polypropylene–polyhedral oligomeric silsesquioxanes (POSS ...
2005年9月8日 · In this paper, the influence of the functionalisation of polyhedral oligomeric silsesquioxanes (POSS) cages on the preparation and properties of polypropylene (PP) based nanocomposites is studied. POSS with different chain lengths (octamethyl-, octaisobutyl- and octaisooctyl-POSS) are taken in to account and melt mixed with PP.
POSS杂化聚硅氧烷复合材料的制备与热性能研究
采用热重分析(tga)、热重-红外联用(tga-ir)、裂解气相色谱-质谱(pygc-ms)等手段对poss杂化聚甲基硅氧烷的热性能、热分解动力学及动态热解性能进行研究,结果表明:v2-poss在聚甲基硅氧烷中均匀分散,poss纳米结构的引入可显著提高聚甲基硅氧烷的热性能 ...
Thermal decomposition analysis of F127 and F127-POSS by TGA.
Our F127-POSS results showed much higher increment of degradation temperature compared to the PHIPOSS/polyurethane. The temperature difference became apparent with higher weight loss at elevated...
POSS含氟丙烯酸酯聚合物的合成及其性能研究 - nwpu.edu.cn
2015年4月28日 · 热失重 (TGA)分析表明,3种POSS聚合物表现出良好的热稳定性能。 对聚合物膜的疏水疏油性研究表明,聚合物膜对水接触角为97°~101°,对正十二烷的接触角则为36°~40°,且随聚合物中TFEMA聚合度的增大,表面能减小,接触角随之增大。 多面体齐聚倍半硅氧烷 …
氟化物包裹的多面体低聚倍半硅氧烷(POSS)纳米晶体的自组装 † …
研究了一系列独特的纳米晶体氟化物离子包裹的多面体低聚倍半硅氧烷(f-poss)化合物的自组装和晶体堆积,该化合物具有不同长度的取代的吸电子基团(ewg)全氟化烷基链臂。
官能团化POSS及多臂星形聚酯的合成与表征
摘要: 利用八乙烯基多面体齐聚倍半硅氧烷 (OVPOSS)与2-巯基乙醇、1-巯基甘油或半胱胺盐酸盐发生高效的“巯基-烯”点击化学反应,制备了表面分别含有8个或16个羟基以及8个氨基的3种POSS衍生物POSS-8OH、POSS-16OH和POSS-8NH 2,采用核磁共振波谱 (1 H-, 13 C-NMR)和傅里叶变换红外光谱 (FTIR)详细表征了它们的化学结构. 随后,利用POSS-8OH和POSS-16OH中的羟基分别引发 ε -己内酯 (ε -CL)和2-乙氧基-2-氧代-1,3,2-二氧磷杂环戊烷 (EOP)进行开环聚 …
TGA curves for neat PDMS and the PDMS–POSS ... - ResearchGate
A facile strategy for the synthesis of binary filler nanocomposite membranes containing fumed silica (FS) and octatrimethylsiloxy polyhedral oligomeric silsesquioxane (POSS) nanoparticles was...
A novel room temperature POSS ionic liquid-based solid polymer ...
2018年2月20日 · The TGA analyses indicate the cubic structures of POSS play a significant role in enhancing the thermal decomposition temperature and the T 10d values of POSS-ILs were increased by 94–178 °C compared with their Arm-ILs. Meanwhile, the glass transition temperature of POSS-ILs also increased to − 15.9 to − 25.4 °C.