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Synthesis of Cellulose Nanocrystals-Armored Fluorinated Polyacrylate Latexes via Pickering Emulsion Polymerization and Their Film Properties

Synthesis of Cellulose Nanocrystals-Armored Fluorinated Polyacrylate Latexes via Pickering Emulsion Polymerization and Their Film Properties

Hong Li, Jianhua Zhou, Jiaojiao Zhao, Yannan Li, Kun Lu

Colloids Surf B Biointerfaces. 2020 Apr 23;192:111071.

PMID: 32361375

Abstract:

Cellulose nanocrystals-armored ﬂuorinated polyacrylate latex particles with the core-shell spherical shape were prepared by a facile and efficient strategy based on Pickering emulsion polymerization using the modified cellulose nanocrystals, poly(2-(dimethylamino) ethyl methacrylate)-g-cellulose nanocrystal-g-poly(2,2,3,4,4,4-hexaﬂuorobutyl acrylate) (PDMAEMA-g-CNC-g-PHFBA) as a sole Pickering stabilizer. The TEM result indicated that PDMAEMA-g-CNC-g-PHFBA effectively anchored on the outside of latex particles and improved the performance of emulsions, demonstrating the important role of the PDMAEMA-g-CNC-g-PHFBA in the Pickering stabilization process. The influences of the type of Pickering stabilizers and the PDMAEMA-g-CNC-g-PHFBA amount on the emulsion polymerization were investigated. The size of latex particles could be adjusted by PDMAEMA-g-CNC-g- PHFBA amount. XPS result showed that the fluorine-containing groups tended to enrich at the air-film interface of latex film during the heat process, leading to the decrease of surface free energy. The water-oil repellent and mechanical properties of the film could be improved as the content of PDMAEMA-g-CNC-g-PHFBA increased. In addition, thermal analysis showed an enhancement of the thermal properties of latex film upon increasing the PDMAEMA-g-CNC-g-PHFBA content.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP54052903	2,2,3,4,4,4-Hexafluorobutyl acrylate		54052-90-3	Price
LS775295	Poly(2,2,3,4,4,4-hexafluorobutyl acrylate)			Price

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