title: Ethyl chitosan synthesis and quantification of the effects acquired after grafting it on a cotton fabric, using ANOVA statistical analysis.
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 (0.1-2.1mmol) and chitosan (CS) (0.1-2.1mmol). 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, 60min) and a good antimicrobial capacity.
authors.affiliation: "Gheorghe Asachi" Technical University, Faculty of Textiles, Leather Engineering and Industrial Management, 29 Blvd. Mangeron, TEX 1 Building, Iasi 700050, Romania.
authors.forename: Vasilica
authors.initials: V
authors.lastname: Popescu
authors.affiliation: "Gheorghe Asachi" Technical University, Faculty of Textiles, Leather Engineering and Industrial Management, 29 Blvd. Mangeron, TEX 1 Building, Iasi 700050, Romania. Electronic address: aug_muresan@yahoo.com.
authors.forename: Augustin
authors.initials: A
authors.lastname: Muresan
authors.affiliation: "Gheorghe Asachi" Technical University, Faculty of Mechanical Engineering, 43 Blvd. Mangeron, Iasi 700050, Romania.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Popescu
authors.affiliation: "Petru Poni" Institute of Macromolecular Chemistry, 41-A Alley Grigore Ghica Voda, Iasi 700487, Romania.
authors.forename: Mihaela
authors.initials: M
authors.lastname: Balan
authors.affiliation: "Alexandru Ioan Cuza" University, Plasma Advanced Research Center (IPARC)-Faculty of Physics, 11 Blvd. Carol I, Iasi 700506, Romania.
authors.forename: Marius
authors.initials: M
authors.lastname: Dobromir
mesh_terms: D000478:Alkylation; D000704:Analysis of Variance; D002482:Cellulose / Q000737:chemistry; D048271:Chitosan / Q000737:chemistry*; D005018:Ethyl Chloride / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013718:Tensile Strength; D013818:Thermogravimetry
chemical_list: D005018:Ethyl Chloride; D002482:Cellulose; D048271:Chitosan
keywords: ANOVA; Acetic acid (PubChem CID: 176); C.I. Basic Blue 9 (PubChem CID: 104827); Chitosan (PubChem CID: 71853); Ethanol (PubChem CID: 702); Ethyl chitosan; FTIR; Hydrochloric acid (PubChem CID: 313); Sodium hydroxide (PubChem CID: 14798); Wrinkle-proofing agent; Zinc acetate (PubChem CID: 11192)