Polystyrene with the ionic liquid pendant groups based on 1-Methylbezotriazolium cation and some their properties

Polymers have an important role in our daily lives and a large amount of polymers produce each year. Polymers have many advantages e.g. Less weight, higher energy efficiency, performance and durability and more flexibility in design and processing [1]. Poly(ionic liquid)s (PILs), are compounds that have an IL species in each monomer repeating unit, that are connected to the polymer backbone and can be afforded through polymerization of IL containing polymerizable groups either in cation or anion, or chemical modification of other polymers. Due to their chemical structure (polymers containing repeating cationic and anionic units that are an electrolyte group), also called poly electrolytes [2]. Styrene is one of the most chemicals that has a wide range of applications from food packaging to automobile segments [3], so much of research is focused on enhancing the properties of polystyrne. In the present work, the styrenic IL monomers based on 1-Methylbenzotriazolium cation were synthesized by linking the 1- Methylbenzotriazol to VBC, then new styrenic ionic liquid based PILs (Figure 1.) were prepared with the free radical polymerization method. The structure of PILs were characterized by IR and1HNMR data.Study of thermogravimetric analysis, and differential scanning calorimetry data showed that the resulting polymers have excellent thermal stability. Solubility of homopolymers in different organic solvents was tested and the electrochemical window of their was investigated for comparison with polystyrene. The styrenic ionic liquid based PILs with the advantage of facile synthesis and the ability to incorporate many desirable functional moieties offer an efficient route to highly functional styrenic PILs.