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低代数聚丙烯亚胺树形分子的合成与表征 被引量:4

Synthesis and Characterization of Low Generation Poly(propyleneimine) Dendrimer
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摘要 对聚丙烯亚胺树形分子的合成进行了研究。通过优化反应条件 ,如提高反应温度、增大反应物浓度、加入少量醋酸作为催化剂、选择氨 甲醇作为还原溶剂 ,提出了一条合成结构较为精确 ,可以最大程度减少或避免副反应的聚丙烯亚胺树形分子的合成路线。红外光谱表明优化条件下所得 0 5代聚丙烯亚胺树形分子反应完全 ,有利于结构增长 ;滴定法表明在氨 甲醇溶剂下还原所得 1 0代聚丙烯亚胺树形分子中伯胺基的摩尔分数为x (NH2 ) =85 % ,比在甲醇条件下所得结果 [x(NH2 ) =76 % ]有较大提高。1H核磁共振、元素分析也表明所合成的低代数聚丙烯亚胺树形分子结构精确 ,达到了分子设计的目的。 Synthesis of poly(propyleneimine) dendrimer was studied. By optimizing reaction conditions, such as increasing reaction temperature and concentration of reactant, introducing a little acetic acid as catalyst and choosing ammonia/methanol as solvent, a preparative route was developed in which the poly(propyleneimine) dendrimer with relatively perfect stucture was obtained and the side reactions were suppressed to a considerable degree or even eliminated. Infrared spectrum showed that 0.5 generation poly(propyleneimine) dendrimer was obtained by reacting completely under optimum conditions, which was in favor of the growth of structure. Titration showed that 1.0 generation poly(propyleneimine) dendrimer obtained in ammonia/methanol contained 85 percent primary amine, which was better than that obtained in methanol. 1H nuclear magnetic resonance and elementary analysis also showed that structures of low generation poly (propyleneimine) dendrimer were perfect and in accord with the expected molecu lar structure.
出处 《精细化工》 EI CAS CSCD 北大核心 2001年第7期414-416,420,共4页 Fine Chemicals
基金 国家自然科学基金资助项目 (2 0 0 770 0 3 )
关键词 低代数 聚丙烯亚胺树形分子 丁二胺 丙烯腈 合成 表征 poly(propyleneimine) dendrimer 1,4 butylenediamine acylonitrile
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参考文献3

  • 1邝生鲁,现代精细化工,1997年,152页
  • 2张志贤,有机官能团定量分析,1990年,317页
  • 3姜麟忠,催化氢化在有机合成中的应用,1987年,96页

同被引文献29

  • 1王勤,周林珠,龚跃法,杨祥良.树枝状聚丙烯亚胺氰端基的催化还原研究[J].化学试剂,2005,27(1):8-10. 被引量:2
  • 2陈永明,陈传福,习复.树枝状大分子的新进展[J].化学通报,1995(10):1-10. 被引量:16
  • 3Mekelburger H B, Jaworek W, Vogtle F. Dendrimer, arborols,and cascade moleculars: breakthrough into generation of new materials[J]. Angew. Chem. Int. Ed. Engl. , 1992,31: 1571-1576.
  • 4Sideratou Z, Tsiourvas D, Paleos C M. Solubilization and release properties of PEGylated diaminobutane poly(propylene imine) dendrimers[J]. J. Colloid Interface Sci. ,2001,242:272-276.
  • 5Worner C, Mulhaupt R. Polynitrile-and polyamine-functional poly(trimethy.lene imine) dendrimers[J]. Angew . Chem. Int.Ed. Engl., 1993,32(9) : 1306-1308.
  • 6ELlen M M,Meijer E W.Poly(propylene imine) dendrimers: large-scale synthesis by heterogeneously catalyzed hydrogenations[ J] .Angew. Chem. Int. Ed. Engl. , 1993,32(9):1308-1311.
  • 7Klenke B, Gilbert I H. Nitrile reduction in the presence of Boc-protected amino groups by catalytic hydrogenation over palladium-activated Raney-nickel[J]. J. Org. Chem. ,2001,66(7) :2480-2483.
  • 8Gomez S, Maschmeyer T. The reductive amination of aldehydes and ketones and the hydrogenation of aides: mechanistic aspects and selectivity control[ J]. Adv. Synth. Caatal., 2002,344: 1037-1057.
  • 9Mekelburger H B,Jaworek W,Vogtle F.Dendrimer,arborols and cascade molecular:breakthrough into generation of new materials[J].Angew Chem Int Ed Engl,1992,31:1571-1576.
  • 10Sideratou Z,Tsiourvas D,Paleos C M.Solubilization and release groperties of PEGylated diaminobutane poly(propylene imine) dendrimers[J].J Colloid Interface Sci,2001,242:272-276.

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