Hello experts, 

I want to know that how i can do crosslinking of ionic liquids with PDMS polymer?

actually i want to use ionic liquids( with different weight percentages i.e 5, 7.5 10 etc ) with PDMS polymer to make a membrane. for this i built a polymer using homo-polymer section. built the ionic liquids (both cation & anion in the same window). then i assign charges using Modify> charges> calculate using QEq method.

then i did energy minimization following geometry optimization (Summation method: Ewald for both electrostatic & vanderwaal )
then i built a amorphous cell, task "Construction" give the initial density "0.5" g/cc set frames to 10 and loaded 10 polymer chains ( fix for every wt% of ionic liquid) of PDMS and loaded different wt% of ionic liquid, set other parameters like COMPASS , forcefield assign Temperature etc and make the membrane

i could not come up with crosslink membrane nor i find any option to make crosslink ionic liquid membrane. 

please guide me in above steps what i have done wrong and also how i can do crosslink ionic liquid with polymer? 

I am new in this field plus first one in my research group to do simulation, so can't get any help from them.

waiting for positive response