950k PMMA in dichloromethane?

Hi folks,
I want to spin coat a substrate with 950k PMMA. My problem is that I
can bake to no more than 100ºC and this is the reason I can't use the
commercial PMMA diluted in chlorobenzene or anysol. I have found that
dichloromethane is a good solvent for PMMA and with a low boiling
point (40C).
The question is if this solvent, the dichloromethane, will cut the
chains of the PMMA giving a lower MW PMMA (unwanted) or if it will
keep the original lenght of the PMMA?

Thank you very much in advance.

Manuscha