Dear All,
I am using EDC as catalyst with polyesters having 4 free OH groups, to form gel network, by adding a crosslinker. Problem, I am facing is, that when I add EDC.HCl, it forms a network prior to adding crosslinker. Normal case is, it should form network after addition of crosslinker and not EDC. Could some one share his experience or suggest something about this problem?
Dear Sir Amer and Rao,
Thank you for your answer but I want to attach a boronic acid. I am sorry, question was not clear first, I think. Actually, I want to attach carboxyl derivative of boronic acid to OH of my polymer through esterification. So, I have to attach EDC and DMAP first in order to attach boronate to my polymer. At the end of the day, I want boronate to graft to my polymer and then crosslink it chemically. But I get gels after when I add edc and dmap, prior to add any crosslinker. I think, you would have understood the point now.
Regards
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