Synthesis and Characterization of an Amphiprotic Highly Branched Polyester Nanoparticle

Chem. J. Chinese Universities ›› 1996, Vol. 17 ›› Issue (7): 1137.

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Synthesis and Characterization of an Amphiprotic Highly Branched Polyester Nanoparticle

MA Rong-Jiu¹, ZHOU Bo¹, SHEN Jia-Cong¹, WU Qi², WU Jia-Hui², CHEN Jin-Huang²

1. Department of Chemistry, Jilin University, Changchun 130023;
2. Department of Chemistry, The Chinese University of Hong Kong, Hong Kong

Received:1995-07-11 Online:1996-07-24 Published:1996-07-24

Abstract

Abstract: The novel amphiprotic highly branched polyester nanoparticles (HBPN) were prepared by a copolymerization(condensation) of pentaerythritol and phthalic anhydride and studied by laser light scattering (LLS) in both of N,N-dimethylformamide(DMF) and buffer solution (pH=12).The results show that the size of HBPN can be controlled basically by the copolymerization time;HBPNis monomolecular dispersion in DMF,unsoluble in water,but can be dissolved and bears negative charges on surface in alkaline solution;a little amount of HBPN aggregated still in pH=12 buffer solution.

Key words: Nanoparticle, Characterization, Laser light scattering

TrendMD:

MA Rong-Jiu, ZHOU Bo, SHEN Jia-Cong, WU Qi, WU Jia-Hui, CHEN Jin-Huang. Synthesis and Characterization of an Amphiprotic Highly Branched Polyester Nanoparticle[J]. Chem. J. Chinese Universities, 1996, 17(7): 1137.

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Synthesis and Characterization of an Amphiprotic Highly Branched Polyester Nanoparticle

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