Hello, I am looking for a lab or a company with which we can determine the molar mass of our polymer, knowing that ESI and MALDI cannot be relevant solutions for our polymer. If you can assist us with this or know of any labs or companies, please do not hesitate to contact us or identify them. Thank you for your feedback."
To determine the molar mass of your polymer, consider techniques like Size Exclusion Chromatography (SEC), Osmometry, and Static Light Scattering (SLS).
In France :https://www.eag.com/services/materials/polymer-chemistry/
Europe : https://www.intertek.com/analytical-laboratories/chalon/
The answers are already given. I like to add that polymer molecular weight is diverse in nature. Three types of molecular weights are generally considered. The number average molecular weight is determined by using membrane osmometer/vapor phase osmometer. ( Measurement biased towards the number of polymer molecules). Weight average molecular weight is determined by using light scattering instrument. (Biased towards large polymer molecules). Viscosity average molecular weight is determined by automatic viscometer assembly. Intrinsic viscosity is measured. Gel permeation chromatography (GPC/SEC) gives all the molecular weights.
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