Synthesis and characterization of poly(butyl acrylate–methyl methacrylate)/polyaniline core–shell latexes

2007 ◽  
Vol 104 (2) ◽  
pp. 823-830 ◽  
Author(s):  
Chia-Fu Chen ◽  
Kuan-Huei Lee ◽  
Wen-Yen Chiu
Keyword(s):  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Synthesis And Characterization ◽  
Core Shell

Synthesis and Characterization of Silicone-Modified Butyl Acrylate-Methyl Methacrylate Copolymer Latex

2011 ◽  
Vol 314-316 ◽  
pp. 292-295
Author(s):  
Ye Han ◽  
Xin Wen Li ◽  
Zhen Guo Liu ◽  
Hui Xuan Zhang
Keyword(s):  
Methyl Methacrylate ◽  
Dynamic Mechanical Analysis ◽  
Adhesive Strength ◽  
Butyl Acrylate ◽  
Mechanical Analysis ◽  
Latex Film ◽  
Synthesis And Characterization ◽  
Freeze Resistance ◽  
Methacrylate Copolymer

Silicone-modified butyl acrylate-methyl methacrylate copolymer latex was prepared via semi-continuous emulsion polymerization. Octamethyl cyclotetrasiloxane (D4) was used to link acrylate and potassium persulfate was used as initiator (KPS). Effect of D4 content on polymerization of acrylate and properties of latex film were discussed in details. The results showed that the properties of acrylate could be improved by the introduction of D4. Dynamic mechanical analysis showed that the freeze resistance of copolymer was effectively improved. In addition, effect of D4 content on adhesive strength of copolymer was also investigated.

scholarly journals Synthesis and Characterization of a Core-Shell Copolymer with Different Glass Transition Temperatures

Fibers ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 71
Author(s):  
Panagiotis Goulis ◽  
Ioannis A. Kartsonakis ◽  
Costas A. Charitidis
Keyword(s):  
Glass Transition ◽  
Methyl Methacrylate ◽  
Methacrylic Acid ◽  
Aqueous Media ◽  
Synthesis And Characterization ◽  
Core Shell ◽  
Experimental Procedure ◽  
The Core ◽  
Copolymer Poly

The aim of this study is to synthesize an organic core-shell co-polymer with a different glass transition temperature (Tg) between the core and the shell that can be used for several applications such as the selective debonding of coatings or the release of encapsulated materials. The co-polymer was synthesized using free radical polymerization and was characterized with respect to its morphology, composition and thermal behavior. The obtained results confirmed the successful synthesis of the co-polymer copolymer poly(methyl methacrylate)@poly(methacrylic acid-co-ethylene glycol dimethacrylate), PMMA@P(MAA-co-EGDMA), which can be used along with water-based solvents. Furthermore, the Tg of the polymer’s core PMMA was 104 °C, while the Tg of the shell P(MAA-co-EGDMA) was 228 °C, making it appropriate for a wide variety of applications. It is worth mentioning that by following this specific experimental procedure, methacrylic acid was copolymerized in water, as the shell of the copolymer, without forming a gel-like structure (hydrogel), as happens when a monomer is polymerized in aqueous media, such as in the case of super-absorbent polymers. Moreover, the addition and subsequent polymerization of the monomer methyl methacrylate (MAA) into the mixture of the already polymerized PMMA resulted in a material that was uniform in size, without any agglomerations or sediments.

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