formation of chain

Dear user lammps

I want to put 400 monomer of pmma in box in 500 temperature and then with reax potential allow to form some chain. I do this but no chain form. please help me.

Dear user lammps

I want to put 400 monomer of pmma in box in 500 temperature and then with
reax potential allow to form some chain. I do this but no chain form.
please help me.

​what kind of help is it exactly that you are looking for?

you are posting to a mailing list for solving problems with the LAMMPS
simulation software, but your question indicates that you rather need
consulting on the chemistry of the polymerization process (or the related
thermodynamics and kinetics) and less so on any particular LAMMPS facility.

axel.