三聚硫氰酸交联树脂和L-胱氨酸氨基醇的合成及其应用研究
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摘要
本文首先以三聚硫氰酸为原料,邻苯二甲酸二辛酯为增塑剂,聚氯乙烯为大分子骨架,合成得到了三聚硫氰酸交联聚氯乙烯树脂,用IR、1H NMR对产物进行了表征,考察了该交联树脂对一定浓度范围内的Cu2+、Zn2+、Mn2+、Ag+和Pb2+5种重金属离子的吸附性能,并讨论了吸附时间和温度对上述金属离子吸附容量的影响；同时考察了Cu2+与其他4种离子的混合溶液经树脂吸附后溶液中各个离子的吸附容量。研究结果表明：合成的聚氯乙烯树脂对Cu2+的吸附容量最大,在实验条件下吸附量达到1.056 mmol/g,对其他4种金属离子吸附量很小,对Pb2+基本不吸附；树脂对混合离子中的Cu2+有选择吸附性,对其他离子有少量吸附。
其次,设计合成路线,以L-胱氨酸为手性源,经甲酯化、格氏反应得到新型L-胱氨酸二齿手性氨基醇,用IR、1H NMR等对产物进行了表征；考察得到的二齿手性氨基醇对扁桃酸、布洛芬对映体的手性识别能力,结果表明：L-胱氨酸二齿手性氨基醇对扁桃酸、布洛芬对映体没有显示出手性识别能力。
Polyvinyl chloride resin crosslinked trimerization thiocyanic acid was synthesized in the first part of this thesis by using trimerization thiocyanic acid as a starting material, Dioctyl phthalate as a plasticizer and Polyvinyl chloride frame for the macromolecular scaffold,whose structure was verified by IR and 1H NMR. The adsorption capacities of the Polyvinyl chloride resin to 5 different kinds of heavy metal ions (Cu2+ Zn2+、Mn2+、Ag+and Pb2+)in the given concentration range, together with the influence of adsorption time and temperature on every metal ion respectively, was investigated. Meanwhile, the adsorption capacity of the resin to each ion in the mixed solution including Cu2+ and the other 4 ions was studied. The experimental results indicated that PVC resin had the largest adsorption capacity for Cu2+ in the experimental conditions with the adsorption capacity 1.056 mmol/g, while for the other metal ions were very small with almost no adsorption of Pb2+. Moreover, the resin had a selective adsorption to Cu2+ in the mixed ion solutions with a small adsorption to other ions.
L-cystine as the chiral sourse, a novel L-cystine bidentate chiral amino alcohol was synthesized in the second part by the reaction of methyl ester and Grignard reagent,whose structure was verified by IR and 1H NMR. Chiral recognition ability of L-cystine bidentate chiral amino alcohol to mandelic acid, ibuprofen enantiomers was studied respectively. The results showed that L-cystine bidentate chiral amino alcohols had no chiral recognition ability to mandelic acid and ibuprofen enantiomers.
其次,设计合成路线,以L-胱氨酸为手性源,经甲酯化、格氏反应得到新型L-胱氨酸二齿手性氨基醇,用IR、1H NMR等对产物进行了表征；考察得到的二齿手性氨基醇对扁桃酸、布洛芬对映体的手性识别能力,结果表明：L-胱氨酸二齿手性氨基醇对扁桃酸、布洛芬对映体没有显示出手性识别能力。
Polyvinyl chloride resin crosslinked trimerization thiocyanic acid was synthesized in the first part of this thesis by using trimerization thiocyanic acid as a starting material, Dioctyl phthalate as a plasticizer and Polyvinyl chloride frame for the macromolecular scaffold,whose structure was verified by IR and 1H NMR. The adsorption capacities of the Polyvinyl chloride resin to 5 different kinds of heavy metal ions (Cu2+ Zn2+、Mn2+、Ag+and Pb2+)in the given concentration range, together with the influence of adsorption time and temperature on every metal ion respectively, was investigated. Meanwhile, the adsorption capacity of the resin to each ion in the mixed solution including Cu2+ and the other 4 ions was studied. The experimental results indicated that PVC resin had the largest adsorption capacity for Cu2+ in the experimental conditions with the adsorption capacity 1.056 mmol/g, while for the other metal ions were very small with almost no adsorption of Pb2+. Moreover, the resin had a selective adsorption to Cu2+ in the mixed ion solutions with a small adsorption to other ions.
L-cystine as the chiral sourse, a novel L-cystine bidentate chiral amino alcohol was synthesized in the second part by the reaction of methyl ester and Grignard reagent,whose structure was verified by IR and 1H NMR. Chiral recognition ability of L-cystine bidentate chiral amino alcohol to mandelic acid, ibuprofen enantiomers was studied respectively. The results showed that L-cystine bidentate chiral amino alcohols had no chiral recognition ability to mandelic acid and ibuprofen enantiomers.
引文
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