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Synthesis and properties of acrylate latex modified by vinyl alkoxy siloxane

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Abstract

Acrylate latex modified by vinyl triisopropoxy silane (C-1706) was synthesized by seeded emulsion polymerization with anionic emulsifier sodium dodecyl sulphonate(SDS) and nonionic emulsifier OP-10 as the multiple emulsifiers at (78±2)°C. The effects of different factors, such as the emulsifier, C-1706 monomer and its feeding manner on the properties of acrylate latex modified by C-1706 were investigated. The particle size distribution and the structure, the configuration, the weather durability and stain resistance of copolymer latex were characterized by particle size analyzer, Fourier transform infrared spectroscopy (FT-IR), transmission electron microscope(TEM), scanning electron microscope(SEM) and ultraviolet aging instrument respectively. The results show that SDS to OP-10 as multiple emulsifiers can lead to coordinated efficiency, the optimal emulsifier dosage is 2.4%–3.2% (mass fraction), and the mass ratio of SDS to OP-10 is 1:1–1:2. The seeded emulsion polymerization can effectively introduce a organic-siloxane bonding in a macromolecule inter polymer, and the obtained acrylate latex modified by organic-siloxane possesses narrow distribution of particle size with mean diameter of 51.8–76.6 nm and has the excellent properties in weather durability and stain-resistance especially.

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Authors and Affiliations

  1. School of Chemical and Energy Engineering, South China University of Technology, Guangzhou, 510641, China

    Zhang Xin-ya  (张心亚), Sun Zhi-juan  (孙志娟), Huang Hong  (黄洪), Li Yong-jin  (黎永津), Lan Ren-hua  (蓝仁华) & Chen Huan-qin  (陈焕钦)

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  1. Zhang Xin-ya  (张心亚)
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  2. Sun Zhi-juan  (孙志娟)
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  3. Huang Hong  (黄洪)
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  4. Li Yong-jin  (黎永津)
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  5. Lan Ren-hua  (蓝仁华)
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  6. Chen Huan-qin  (陈焕钦)
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Correspondence to Zhang Xin-ya  (张心亚).

Additional information

Foundation item: Project(2003B10506) supported by Science and Technology Department of Guangdong Province, China

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Zhang, Xy., Sun, Zj., Huang, H. et al. Synthesis and properties of acrylate latex modified by vinyl alkoxy siloxane. J Cent. South Univ. Technol. 14, 666–672 (2007). https://doi.org/10.1007/s11771-007-0128-7

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  • DOI: https://doi.org/10.1007/s11771-007-0128-7

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