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- W2364231962 abstract "Polycarboxylic acids as esterification agent and inorganic salts as catalyst were used in the research of (cellulose) cross-linking reaction.This soluble cross-linking system is a poison-free and pollution-free system.The mechanism and effect of catalyst NaH_2PO_2 on esterification of cellulose by polycarboxylic acid were studied by FTIR spectra.Experimental results show that NaH_2PO_2 played catalysis role in both stages of esterification between cellulose and polycarboxylic acid,which are:1)The intermediate anhydrides of five-member-ring were formed by dehydration of polycarboxylic acids,during which the formation temperature was reduced by the catalyst;2)Esters were formed through nucleophilic substitution between the five-member-ring anhydride and cellulose during which,the conversion of esterificative products was enhanced by the catalyst.The catalysis effect of NaH_2PO_2 is remarkable." @default.
- W2364231962 created "2016-06-24" @default.
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- W2364231962 date "2004-01-01" @default.
- W2364231962 modified "2023-09-26" @default.
- W2364231962 title "CATALYTIC EFFECT OF NaH_2PO_2 IN ESTERIFICATION OF CELLULOSE BY POLYCARBOXYLIC ACID" @default.
- W2364231962 hasPublicationYear "2004" @default.
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