Dual Responsive Pickering Emulsion Stabilized by Poly[2-(dimethylamino)ethyl methacrylate] Grafted Cellulose Nanocrystals

• Published in: Biomacromolecules Vol. 15; no. 8; pp. 3052 - 3060
• Main Authors: Tang, Juntao, Lee, Micky Fu Xiang, Zhang, Wei, Zhao, Boxin, Berry, Richard M, Tam, Kam C
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 11.08.2014
• Subjects: Applied sciences; cellulose; Cellulose - chemistry; Cellulose and derivatives; color; droplets; electrolytes; Electrolytes - chemistry; emulsifying; Emulsions; Exact sciences and technology; Fourier transform infrared spectroscopy; heptane; Hydrogen-Ion Concentration; Methacrylates - chemistry; nanocrystals; Nanoparticles - chemistry; Natural polymers; Nylons - chemistry; oils; Physicochemistry of polymers; Polymerization; Polymers - chemistry; solvents; Spectroscopy, Fourier Transform Infrared; surface tension; Temperature; thermogravimetry; titration; toluene; Water - chemistry; Surface reaction; Oil water emulsion; Emulsifying power; Cellulose; Cationic surfactant; Temperature effect; Surfactant polymer; Particle suspension; Experimental study; Grafting; Cellulose graft copolymer; Polyelectrolyte; Ionic strength; Preparation; Concentration effect; Surface properties; pH; Electrokinetic potential; Methacrylate copolymer; Surface activity; Amine copolymer; Nanocrystal
• ISSN: 1525-7797; 1526-4602; 1526-4602
• DOI: 10.1021/bm500663w

A weak polyelectrolyte, poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA), was grafted onto the surface of cellulose nanocrystals via free radical polymerization. The resultant suspension of PDMAEMA-grafted-cellulose nanocrystals (PDMAEMA-g-CNC) possessed pH-responsive properties. The grafting was...