【摘要】 采用乳液共聚法,以2-丙烯酰胺-2-甲基丙磺酸(AMPS)为亲水性阴离子单体、苯乙烯(St)和丙烯酸丁酯(BA)为疏水性酯类单体,合成了水稻种衣剂用AMPS/St/BA三元共聚成膜剂。考察了单体、引发剂、复合乳化剂和交联剂对成膜剂性能的影响。结果表明,在AMPS、引发剂和交联剂用量分别是单体量的4%、0.3%和3%,复合乳化剂用量是单体量的3%,且SDS和DNS-458的质量比为1:3时,成膜剂的性能最佳。合成的成膜剂具有良好的耐水性和生物相容性,适用于制备耐水性要求较高的水稻种衣剂。更多还原

【Abstract】 With using 2-acrylamide-2-methyl-propanesulfonic acid(AMPS) as hydrophilic anionic monomer,and styrene(St) and butyl acrylate(BA) as the hydrophobic monomer,the film-forming agent(namely AMPS/St/BA copolymer) for rice seed coating was synthesized by emulsion copolymerization.The influences of monomers,initiator,composite emulsifier and crosslinking agent on the film-forming agent performance were investigated.The results showed that,when the AMPS,initiator and crosslinking amount was 4%,0.3% and 3% of the monomer respectively,the composite emulsifier SDS/DNS-458 content was 3% of the monomer,and the mass ratio of SDS to DNS-458 was 1:3,the film-forming agent with excellent performance could be prepared.This synthesized film-forming agent had a good water resistance and biocompatibility,and was suitable for preparing rice seed coating which need high water resistance.更多还原