Abstract
Herein, novel hyperbranched polyamidoamine guanidinium salts (GS-h-PAMAM) and two cationic acrylamide copolymers P(AM-DAC-ABSM) and P(AM-DAC-AMTU) were successfully prepared. Then, self-assembly supramolecular systems were synthesized by directly mixing GS-h-PAMAM with copolymers in aqueous solution, and the mechanism of the self-assembly process was speculated. FT-IR, NMR, and SEM were used for structural confirmation. Furthermore, the excellent solution properties revealed that the supramolecular systems had potential application in clay hydration inhibitors. More importantly, utilizing functionalized hyperbranched polyamidoamine in the synthesis self-assembly supramolecular systems was an effective strategy for expanding their application fields and developing new functional materials, providing a powerful reference for the next study.
Highlights
IntroductionThe supramolecular system was composed of two or more molecules through a non-covalent
A certain amount of diethylene triamine (DETA) dissolved with 20 mL methanol was added into a 100 mL single-necked round bottom flask with a magnetic stir bar, the system was kept nitrogen gas atmosphere for 20 min, a certain amount of methyl acrylate (MA) was added with stirring, the mixture was reacted at 25 ◦ C for 24 h, evaporated to remove the solvent methanol, the remained products were continued to react at a certain temperature for 12 h
The reaction system was cooled to room temperature, the crude product was dissolved with methanol, and precipitated with diethyl ether, filtered, filter cake was washed with diethyl ether three times and dried under vacuum, a light yellow product hyperbranched polyamidoamine (h-PAMAM)
Summary
The supramolecular system was composed of two or more molecules through a non-covalent. The self-assembly supramolecular system based on hyperbranched polyamidoamine had become a wide topic [11,13,14,15]. Sun et al [15] synthesized a novel hyperbranched polyamidoamine based self-assembly supramolecular polymeric micelle EGCG–HPAM–Dex via electrostatic, hydrogen bonding and hydrophobic interactions. The polymer molecular had the self-fluorescent performance [16,17] Due to these unique properties, the hyperbranched polyamidoamine was expected to be used in many files, such as biomedicine [18,19,20,21,22], nanomaterials [23,24,25], sensing [26,27], etc. There was less study on the preparation and performance of functionalized hyperbranched polyamidoamine based self-assembly supramolecular systems. The solution properties of supramolecular systems were comparatively studied with corresponding copolymer systems
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