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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and characterization of trilayer core-shell polysilsesquioxane-fluoroacrylate copolymer composite emulsion particles
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Preparation and characterization of trilayer core-shell polysilsesquioxane-fluoroacrylate copolymer composite emulsion particles

机译：三层芯 - 壳聚硅晶硅氧烷 - 氟丙烯酸酯共聚物复合乳液颗粒的制备及表征

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Polysilsesquioxane-fluoroacrylate copolymer [poly(methyl methacrylate)-butyl acrylate-dodecafluoroheptyl methacrylate)] (FPSQ) composite latex particles with a trilayer core-shell morphology were manufactured by seeded emulsion polymerization, where PSQ latex particles bearing reactive methacryloxypropyl moieties were first produced by the hydrolysis-condensation of (3-methacryloxypropyl)trimethoxysilane, and then they were utilized as seeds, with methyl methacrylate, butyl acrylate, and dodecafluoroheptyl methacrylate as the inner and outer shell monomers. Fourier-transform infrared spectra and H-1-NMR confirm the structure of the FPSQs. Transmission electron microscopy and scanning electron microscopy demonstrate that the obtained composite emulsion particles emerge with the trilayer core-shell pattern. Due to the anchoring of PSQ nanoparticles, the thermal stabilities of the FPSQ films are strengthened, and the resistance to heat is gradually improved along with the increase of the fluoroacrylate dose in the polymer matrix composite. X-ray photoelectron spectroscopy, atomic force microscopy (AFM), and hydrophobicity investigations indicate that the fluorinated chain segments tend to concentrate at the film-air two-phase interface. In addition, the AFM result denotes that importing more fluorine into the FPSQ hybrid material will engender greater phase separation and enrichment of the fluoroalkyl segments and a rougher morphology. Thus, the water contact angle of the FPSQ film can ultimately reach 121.4 degrees. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44845.
机译：聚倍半硅氧烷 - 含氟丙烯酸酯共聚物[聚（甲基丙烯酸甲酯） - 丁基丙烯酸酯 - 甲基丙烯酸十二氟）]（FPSQ）具有三层核 - 壳形态的复合胶乳颗粒通过种子乳液聚合，其中带有反应性基团甲基丙烯酰PSQ胶乳颗粒首先通过生产制造（3-甲基丙烯酰）三甲氧基硅烷的水解 - 缩合，然后将其用作种子，与甲基丙烯酸甲酯，丙烯酸丁酯，和作为内和外壳单体甲基丙烯酸十二氟庚。傅里叶变换红外光谱和H-1-NMR确认FPSQs的结构。透射电子显微镜和扫描电子显微镜表明，所得到的复合乳液颗粒出现与三层核壳图案。由于PSQ纳米颗粒的锚定，所述FPSQ膜的热稳定性得到加强，并且以热的电阻逐渐与氟代剂量的在聚合物基质中复合材料中的增加而提高沿。 X射线光电子能谱法，原子力显微镜（AFM），和疏水性的调查表明，氟化链段倾向于浓缩在薄膜 - 空气两相界面。此外，AFM结果表示导入以上的氟进入FPSQ混合材料会产生更大的相分离和氟代链段的富集和粗糙形态。因此，FPSQ膜的水接触角可以最终达到121.4度。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2017年，134，44845。

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