高度单分散聚硅倍半氧烷球：合成及其在棉织物上的应用。
Highly monodisperse polysilsesquioxane spheres: synthesis and application in cotton fabrics.
机构信息
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, PR China.
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, PR China.
出版信息
J Colloid Interface Sci. 2013 Feb 15;392:194-200. doi: 10.1016/j.jcis.2012.08.071. Epub 2012 Oct 16.
Highly monodisperse methyl-functionalized, vinyl-functionalized, and thiol-functionalized polysilsesquioxane spheres (MPSQ, VPSQ, and MPPSQ spheres) have been successfully prepared through a one-pot emulsion approach with one organosilane as sole precursor in aqueous medium. The morphology, size distribution, and chemical structure were characterized by SEM, DLS, FT-IR, solid NMR, XRD, etc. The thermodecomposition and hydrophobicity of these spheres were investigated with TGA and water contact angle measurement. Our research turns out that the organofunctional groups play a key role in thermostability and hydrophobicity of polysilsesquioxane spheres, MPSQ, and VPSQ spheres possess better thermostability than MPPSQ spheres, the order of hydrophobicity is as follows: MPSQ>VPSQ>MPPSQ. Cotton fabrics can become superhydrophobic when treated with methyl- or vinyl-functional silica spheres.
已成功通过在水介质中以一种有机硅烷为唯一前体制备的一锅乳液法制备了高度单分散的甲硅烷基官能化、乙烯基官能化和巯基官能化聚倍半硅氧烷（MPSQ、VPSQ 和 MPPSQ 球）。通过 SEM、DLS、FT-IR、固体 NMR、XRD 等对其形貌、粒径分布和化学结构进行了表征。通过 TGA 和水接触角测量研究了这些球的热分解和疏水性。我们的研究表明，有机官能团在聚倍半硅氧烷球、MPSQ 和 VPSQ 球的热稳定性和疏水性中起着关键作用，MPSQ 和 VPSQ 球比 MPPSQ 球具有更好的热稳定性，疏水性顺序如下：MPSQ>VPSQ>MPPSQ。经甲硅烷基或乙烯基官能化的二氧化硅球处理后，棉织物可变为超疏水。
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