采用N,N-二甲基-2-氯乙酰胺、4-羟基苯乙酸、三乙胺等为原料,于乙腈中反应,HPLC跟踪检测合成对羟基苯乙酸-N,N-二甲基甲酰氨基甲酰甲酯(简称化合物B)。结果表明,最佳合成工艺参数为:反应时间12 h,反应温度60℃,溶剂用量为2 200 m L,物...采用N,N-二甲基-2-氯乙酰胺、4-羟基苯乙酸、三乙胺等为原料,于乙腈中反应,HPLC跟踪检测合成对羟基苯乙酸-N,N-二甲基甲酰氨基甲酰甲酯(简称化合物B)。结果表明,最佳合成工艺参数为:反应时间12 h,反应温度60℃,溶剂用量为2 200 m L,物料比为n(4-羟基苯乙酸)∶n(N,N-二甲基-2-氯乙酰胺)=1∶1.10。在最佳条件下,收率86%,纯度98%以上。展开更多
A novel well-defined water-soluble macromonomer based on 2-(dimethylamino) ethyl methacry-late(DMAEMA) was synthesized by using functional initiators such as potassium alcoholate of trimethylol-propane allyl ether via...A novel well-defined water-soluble macromonomer based on 2-(dimethylamino) ethyl methacry-late(DMAEMA) was synthesized by using functional initiators such as potassium alcoholate of trimethylol-propane allyl ether via oxyanion-initiated polymerization. GPC and 1H NMR studies confirmed that themacromonomers had narrow molecular weight distribution and each Poly(DMAEMA) chain contained apolymerizable allyl group. The macromonomers were highly surface active in aqueous media. They havepotential applications in preparation of surface-clean and functional latexes both as effective stabilizers andas co-monomers.展开更多
文摘采用N,N-二甲基-2-氯乙酰胺、4-羟基苯乙酸、三乙胺等为原料,于乙腈中反应,HPLC跟踪检测合成对羟基苯乙酸-N,N-二甲基甲酰氨基甲酰甲酯(简称化合物B)。结果表明,最佳合成工艺参数为:反应时间12 h,反应温度60℃,溶剂用量为2 200 m L,物料比为n(4-羟基苯乙酸)∶n(N,N-二甲基-2-氯乙酰胺)=1∶1.10。在最佳条件下,收率86%,纯度98%以上。
文摘A novel well-defined water-soluble macromonomer based on 2-(dimethylamino) ethyl methacry-late(DMAEMA) was synthesized by using functional initiators such as potassium alcoholate of trimethylol-propane allyl ether via oxyanion-initiated polymerization. GPC and 1H NMR studies confirmed that themacromonomers had narrow molecular weight distribution and each Poly(DMAEMA) chain contained apolymerizable allyl group. The macromonomers were highly surface active in aqueous media. They havepotential applications in preparation of surface-clean and functional latexes both as effective stabilizers andas co-monomers.
