波谱学杂志2012，Vol.29Issue(2)：248-257,10.
POSS纳米复合物链运动的固体NMR研究
A Solid-State NMR Study on the Segmental Motion of Polyhedral Oligomeric Silsequi-Oxane(POSS) Nanocomposites
摘要
Abstract
The segmental motions of two nanocomposites, in which polyhedral oligomer-ic silsequi-oxane (POSS) is respectively copolymerized with n-butyl methacrylate (BMA) and methyl methacrylate (MMA), were investigated by solid-state NMR techniques in combination with transmission electron microscopy (TEM). The results indicated that the POSS molecules are thoroughly dispersed in the two polymer matrix. The POSS/PMMA and POSS/PBMA nanocomposites showed a homogenous structure with almost one component, and the segmental motions more constrained in the POSS/PMMA nanocomposite than the POSS/PBMA nanocomposite. The 2D HETCOR results indicated the distance between the polymer and POSS unit is shorter in the POSS/PBMA nanocomposite than in the POSS/PMMA nanocomposite.关键词
固体核磁共振(solid-state NMR)/链运动/弛豫时间/POSS纳米复合物Key words
solid-state NMR/ segmental motion/ relaxation time/ POSS nanocomposite分类
数理科学引用本文复制引用
邹琴,申万岭,高秀枝,邓风..POSS纳米复合物链运动的固体NMR研究[J].波谱学杂志,2012,29(2):248-257,10.基金项目
国家自然科学基金资助项目(20933009). （20933009）
