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Citation: CUI Yuhua, YANG Jinhong, CUI Yu, SUN Guoxin, SU Benyu. Synthesis and Characterization of High Purity Polyamidoamine Dendrimers[J]. Chinese Journal of Applied Chemistry, ;2012, 29(5): 498-503. doi: 10.3724/SP.J.1095.2012.00273 shu

Synthesis and Characterization of High Purity Polyamidoamine Dendrimers

CUI Yuhua ^a,b ,
YANG Jinhong ^a ,
CUI Yu ^a,, ,
SUN Guoxin ^a ,
SU Benyu ^b

1.
a College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China;
2.
b Shandong Institute of Supervision & Inspection on Product Quality, Jinan 250100, China

Corresponding author: CUI Yu,
Received Date: 23 June 2011
Available Online: 15 August 2011
Fund Project: 国家自然科学基金(21077044) (21077044)山东省自然科学基金(Y2008B41)资助项目 (Y2008B41)

n0.5G~5.0G dendrimers with ethylene diamine as core were synthesized from alternating copolymeraziation of methacrylate by Michael addition reaction.The structures of all products were characterized by FTIR,¹H NMR,HPLC,and elemental analysis.The influences of the reaction temperature,reaction time and ratio of reactants were investigated.The reaction temperature is 25℃ for the half-generations and 35℃ for the full-generations.The optimum reaction time is 18 h for 0.5G,24 h for 1.0G and 1.5G,36 h for 2.0G and 2.5G,48 h for 3.0G and 3.5G,3 d for 4.0 and 4.5G,and 4 d for 5.0G.The main difficulty in the synthesis is the separation and purification of the products.The results showed that the purity of polyamidoamine dendrimers was improved by solvent extraction using ether as extractant and ethanol as exchanged solvent.
- dendrimers,
- polyamidoamine,
- synthesis,
- characterization,
- purification
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