We are doing synthesis of urea–isobutyraldehyde–formaldehyde resins, but its moleculer weight not increase as we need.
all property is match but moleculer weight not increase.
If you are referring to a polymer , you can increase the time of polymerization/ increase the concentration of the monomer/ increase the temperature.
Dear Salman Shekh, please have a look at the following document, hope it will be helpfull. My Regards
https://doi.org/10.1021/acs.iecr.8b06043
Dear Dr Salman Shekh . See the following useful RG link: Article Improving the Molecular Weight and Synthesis of a Renewable ...
Kindly see also the following useful RG link: Article Controlling molecular weight and polymer architecture during...
Also check please the following very good RG link: Article Step-Growth Polymerization Method for Ultrahigh Molecular We...
The following link is also very useful: https://www.agilent.com/cs/library/technicaloverviews/public/5990-7890EN.pdf
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