Preparation and application of polysiloxane-modified amphiphilic hyperbranched polyesters

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Journal of Beijing University of Chemical Technology ›› 2013, Vol. 40 ›› Issue (1) : 50-56.

材料科学与工程

GUO Jie;HE LiFan;QIU Teng;ZHANG ShengWen;LI XiaoYu

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A polysiloxane-modified amphiphilic hyperbranched polyester (HBPPSi) has been synthesized through the reaction between the alkyl hydroxyl end-groups of a polysiloxane and the COOH end-groups of a hyperbranched polyester, and the structure of the polymer was identified by FT-IR and ¹H-NMR. The resulting HBPPSi has good solubility in both polar solvents (such as ethanol) and non-polar solvents (such as toluene). The self-assembly behavior of the HBPPSi in ethanol/water solvents was studied by dynamic light scattering and transmission electron microscopy. The results showed that the HBPPSi could form hollow vesicles with different shapes and structures in mixed ethanol/water solvents, and a defoaming agent—which was formulated from the HBPPSi, dimethyl silicone, and hydrophobic nano-silica—showed an excellent defoaming performance.

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GUO Jie;HE LiFan;QIU Teng;ZHANG ShengWen;LI XiaoYu. Preparation and application of polysiloxane-modified amphiphilic hyperbranched polyesters[J]. Journal of Beijing University of Chemical Technology, 2013, 40(1): 50-56

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2012-05-02	1900-01-01	2013-01-20
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2013-01-20

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