scholarly journals Synthesis and Characterization of Waterborne Fluoropolymers Prepared by the One-Step Semi-Continuous Emulsion Polymerization of Chlorotrifluoroethylene, Vinyl Acetate, Butyl Acrylate, Veova 10 and Acrylic Acid

Molecules ◽  
2017 ◽  
Vol 22 (1) ◽  
pp. 184 ◽  
Author(s):  
Hongzhu Liu ◽  
Jiming Bian ◽  
Zhonggang Wang ◽  
Chuan-Jin Hou
2010 ◽  
Vol 150-151 ◽  
pp. 1551-1554 ◽  
Author(s):  
Hong Chi Zhao ◽  
Ling Ling Gao ◽  
Qian Feng Li ◽  
Juan Li Guo

Copolymers of styrene (St), n-butyl acrylate (BA) and vinyltrimethoxysilane (VTMS) have been synthesized by emulsifier-free emulsion copolymerization using ammonium persulfate (APS) as initiator. Acrylic acid used as functional monomer was also added into the emulsion polymerization system. The effects of varying the concentrations of initiator and VTMS as well as the polymerization temperature on the polymerization conversion were investigated in detail. The copolymer was characterized by Fourier transform infrared spectrometer (FTIR). Copolymerization of VTMS with St and BA was confirmed by the appearance of an absorption peak between 1000 cm-1 to 1200 cm-1 (due to Si-O-C bonds) in the IR spectrum. The siloxane segments in the copolymer chain underwent hydrolysis and self-condensation, resulting in a change in the structure of the copolymers from linear into a cross-linked network. As a result, the organic and inorganic hybrid material was formed. The water absorption of emulsion decreased with increasing VTMS concentration. The polymerization conversion increased with increasing polymerization temperature, molar concentration of initiator and decreased with increasing molar concentration of VTMS.


2018 ◽  
Vol 114 ◽  
pp. 1186-1193 ◽  
Author(s):  
Zia-ud-Din ◽  
Lei Chen ◽  
Ikram Ullah ◽  
Peng Kai Wang ◽  
Allah Bakhsh Javaid ◽  
...  

2000 ◽  
Vol 150 (1) ◽  
pp. 161-169 ◽  
Author(s):  
Georgina Montes De Oca-Ramirez ◽  
Leonardo Rios-Guerrero ◽  
José-Antonio Trejo-O'Reilly ◽  
Graciela Flores-Rosete ◽  
Alain Guyot ◽  
...  

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