Propose a reaction scheme for the synthesis of
hyperbranched polyamide, in which there is no possibility...
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Chemistry
Propose a reaction scheme for the synthesis ofhyperbranched polyamide, in which there is no possibility ofgelation. What are the reaction characteristics, which would affectthe molar mass of the polymer.
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Hyperbranched polymers are highly branched macromolecules withthreedimensional dentritic architectureFirst the hyperbranched polyamicacid precursors were prepared by reaction of the dianhydrides and38 in NNdimethylacetamide DMAc Then chemical or thermalimidization of the precursors gave rise to the final hyperbranchedpolyimides Reaction conditions such as the monomer feed ratiomonomer addition manner and concentration strongly influenced thepolymerization results A
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