Surface modification of cellulose nanocrystals via SI-AGET ATRP and application in waterborne coating for removing of formaldehyde. (1st February 2022)

• Record Type: Journal Article
• Authors: Yu, Zhiwei; Sun, Qianru; Sheng, Yu; Xi, Yu; Bai, Liangjiu; Wang, Wenxiang; Chen, Hou; Yang, Huawei; Yang, Lixia
• Is Part Of: Carbohydrate polymers. Volume 277(2022)
• Publication Date: 2022-02-01
• Subjects: HCHO formaldehyde -- CNCs cellulose nanocrystals -- MEAA 2-(methacryloyloxy)ethyl acetoacetate -- SI-AGET ATRP surface-initiated Activator Generated by Electron Transfer Atom Transfer Radical Polymerization -- CNCs@PMEAA CNCs/Poly(2-(methacryloyloxy)ethyl acetoacetate) -- VOCs volatile organic compounds -- CRP controlled/"living" radical polymerization -- ATRP Atom Transfer Radical Polymerization -- AGET ATRP Activator Generated by Electron Transfer ATRP -- eATRP electrochemically mediated ATRP -- PET-ATRP Photoinduced Electron Transfer-ATRP -- MCC microcrystalline cellulose -- BiBB 2-bromo-2-methylpropionyl bromide -- PMDETA N, N, N', N'', N''-Pentamethyldiethylenetriamine -- EBiB ethyl 2-bromoisobutyrate -- DMF N, N-dimethylformamide -- MMA methyl methacrylate -- 2-EHA 2-ethylhexyl acrylate -- MAA methylacrylic acid -- NDM 1-dodecanethiol -- DAAM diacetone acrylamide -- ADH adipic acid dihydrazide -- APS ammonium persulfate -- SDS sodium dodecyl sulfate -- AEO-9 primary alcobol ethoxylate; Cellulose nanocrystals -- Self-healing -- HCHO -- SI-AGET ATRP -- Waterborne coating; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2021.118851
• Languages: English
• ISSNs: 0144-8617

Abstract

Abstract: The hazardous indoor air pollutants of formaldehyde (HCHO) are harmful for human health. Nowadays, it is important to design and fabricate green and efficient HCHO removal materials for HCHO removal from polluted indoor air. In this manuscript, cellulose nanocrystals (CNCs) as green nanomaterials were successfully surface-initiated by 2-(methacryloyloxy)ethyl acetoacetate (MEAA) as functional monomer via surface-initiated Activator Generated by Electron Transfer Atom Transfer Radical Polymerization (SI-AGET ATRP) for the application in removal of HCHO. The employment of CNCs/Poly(2-(methacryloyloxy)ethyl acetoacetate) (CNCs@PMEAA) as nanocomposites were further implanted self-healing waterborne coating for an effective way to remove HCHO. From the result, the HCHO removal efficiency reached 97.5% of CNCs@PMEAA-type coating within 300 min at room temperature, which was much higher than that of the conventional coating (82.8%). This study provides some promising green methods for designing nanocomposite's waterborne coating to remove HCHO at room temperature. Graphical abstract: Unlabelled Image