Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation and successfully used as retanning agent possessing good water solubility and enhanced penetration rate .
u5229u7528u63a5u679du5171u805au548c u78fa u70f7u57fa u5316u7684u65b9u6cd5 u5bf9u843du53f6u677eu5355u5b81u6539u6027u3002
美[sʌl'foʊlkɪleɪʃn]英[sʌl'fəʊlkɪleɪʃn]
磺烷基化作用