Functional styrenic copolymer based on 2-(dimethylamino)ethyl methacrylate: Reactivity ratios, biological activity thermal properties and semi-conducting properties

• The styrenic monomer EBOPFB having pendant penta fluoro atoms was synthesized.
• EBOPFB was copolymerized with commercial DMAEMA monomer.
• The copolymers have good thermal stabilty and antimicrobial effect.
• The ionomers of copolymers has the thermal conductivity properties.

A new type of styrene monomer, 1-[(4-ethenylbenzyl)oxy]-2,3,4,5,6-pentafluorobenzene (EBOPFB) was synthesized. The free-radical-initiated copolymerization of EBOPFB with 2-(dimethylamino)ethyl methacrylate(DMAEMA) were carried out in 1,4-dioxane solution at 65 °C using 2,2′-azobisisobutyronitrile (AIBN) as an initiator with different monomer-to-monomer ratios in the feed. The copolymers were characterized by FTIR, 1H and 13C-NMR spectral studies. The analysis of reactivity ratios revealed that DMAEMA is less reactive than EBOPFB, and copolymers formed are statistically in nature. Thermogravimetric analysis of the polymers reveals that the thermal stability of the copolymers increases with an increase in the mole fraction of EBOPFB in the copolymers. Glass transition temperatures of the copolymers were found to decrease with an increase in the mole fraction of DMAEMA in the copolymers. The room temperature conductivity values of this polymer increases with DMAEMA unit in the copolymer and varies 2.8 and 3.9 ×10−8 S/cm.

Functional styrenic monomer having pendant penta fluorine atoms was synthesized and coploymerized with the DMAEMA monomer.Figure optionsDownload as PowerPoint slide