Ethyl chitosan synthesis and quantification of the effects acquired after grafting it on a cotton fabric, using ANOVA statistical analysis. (15th March 2016)

• Record Type: Journal Article
• Authors: Popescu, Vasilica; Muresan, Augustin; Popescu, Gabriel; Balan, Mihaela; Dobromir, Marius
• Is Part Of: Carbohydrate polymers. Volume 138(2016)
• Page Start: 94
• Page End: 105
• Publication Date: 2016-03-15
• Subjects: ANOVA -- Ethyl chitosan -- FTIR -- Wrinkle-proofing agent; Chitosan (PubChem CID: 71853) -- Acetic acid (PubChem CID: 176) -- Ethanol (PubChem CID: 702) -- Hydrochloric acid (PubChem CID: 313) -- Sodium hydroxide (PubChem CID: 14798) -- Zinc acetate (PubChem CID: 11192) -- C.I. Basic Blue 9 (PubChem CID: 104827); Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2015.11.009
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Synthesis of triethyl chitosan using ethyl chloride as alkylation agent. Alkylation and grafting were confirmed by FTIR, 1 H NMR, XPS, DSC, TGA/DTG. Quantified results: take-up degree, wrinkle-recovering angle, tensile strength. ANOVA shows the maximal effects of chitosan, ethyl chloride and their interaction. Durability of effects was highlighted with tinctorial and diffusimetric methods. Abstract: Three ethyl chitosans (ECSs) have been prepared using the ethyl chloride (AA) that was obtained in situ. Each ECS was applied on a 100% cotton fabric through a pad–dry–cure technology. Using the ANOVA as statistic method, the wrinkle-proofing effects have been determined varying the concentrations of AA (0.1–2.1 mmol) and chitosan (CS) (0.1–2.1 mmol). Alkylation and grafting mechanisms have been confirmed by the results of FTIR, 1 H NMR, XPS, SEM, DSC and termogravimetric analyses. The performances of each ECS as wrinkle-proofing agent have been revealed through quantitative methods (taking-up degree, wrinkle-recovering angle, tensile strength and effect's durability). The ECSs confer wrinkle-recovering angle and tensile strength higher than those of the witness sample. Durability of ECSs grafted on cotton have been demonstrated by a good capacity of dyeing with non-specific (acid/anionic and cationic) dyes under severe working conditions (100 °C, 60 min) and a good antimicrobial capacity.