Synthesis and properties of new amphoteric poly(amidoamine) dendrimers

被引：9
|
作者：
Peng, X. C.
Peng, X. H. [1 ]
Liu, S. M. [1 ]
Zhao, J. Q. [1 ]
机构：
[1] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China
来源：
EXPRESS POLYMER LETTERS | 2009年 / 3卷 / 08期
关键词：
nanocomposites; poly(amidoamine) (PAMAM); polyoxyethylene; amphoteric dendrimers; flocculation efficiency; POLY(ETHYLENE GLYCOL); DELIVERY CARRIER; SYSTEMS; DEPOSITION; COPOLYMER; CHEMISTRY; PAMAM;
D O I：
10.3144/expresspolymlett.2009.63
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of new amphoteric dendrimers have been synthesized by attaching dimethylbenzylaminoethyl acrylate chloride (Bz80), sodium acrylic acid (SAA) and modified polyoxyethylene (MPEO) units to a third-generation poly(amidoamine) (PAMAM) dendrimer core via Michael addition reaction. The structure of the dendrimers was confirmed by Fourier transform infrared (FTIR), proton nuclear magnetic resonance (H-1 NMR), carbon 13 nuclear magnetic resonance (C-13 NMR) spectroscopy and by elemental analysis. Thermal stability and intrinsic viscosity were investigated. The applicable experiment exhibited the amphoteric dendrimers have high flocculation efficiency, which could be significantly improved by combining amphoteric dendrimers with polyacrylamide (PAM). The suitable mass ratio of the dendrimers and PAM was 2:3. The study would promote the use of amphoteric dendrimers as a flocculant in treating wastewater and as a new paper retention aid in papermaking.
引用
收藏
页码：510 / 517
页数：8
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