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A Novel Polyelectrolyte with Branched Azo Side Chains: Synthesis, Characterization and Self‐Assembled Nanostructures
Author(s) -
Cheng Hao,
Tuo Xinlin,
Wang Guojie,
Wang Xiaogong
Publication year - 2001
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/1521-3935(20011201)202:18<3530::aid-macp3530>3.0.co;2-c
Subject(s) - polyelectrolyte , micelle , tetrahydrofuran , side chain , polymer chemistry , self assembly , amphiphile , nanoparticle , solvent , chromophore , chemistry , nanostructure , chemical engineering , materials science , copolymer , organic chemistry , nanotechnology , aqueous solution , polymer , engineering
A novel polyelectrolyte (PEAPB 6 P‐AA) functionalized with branched azo side chains has been synthesized. Aggregation of the azo chromophores of PEAPB 6 P‐AA in H 2 O/tetrahydrofuran (THF) mixed solvent was detected from its influences on UV‐vis spectra and photoresponsive behavior. Micelle‐like nanoparticles were found when the concentration of PEAPB 6 P‐AA increased to above 0.2 mmol·L –1 in the mixed solvent (THF/H 2 O = 1 : 20 vol.‐%). Multilayers of the micelle‐like nanoparticles and poly(diallyldimethylammonium chloride) (PDAC) were fabricated by an electrostatic layer‐by‐layer self‐assembly process. Particularly high wettability of the multilayer surfaces was observed, which affirmed the self‐assembled micelle‐like structure of the particles.