title: Effects of acid diffusibility and affinity to cellulose on strength loss of polycarboxylic acid crosslinked fabrics.
abstract: 1,2,3,4-Butanetetracarboxylic acid (BTCA) imparts good anti-wrinkle property to cotton fabrics and results in significant strength loss due to cross-linking and acid degradation of cellulose simultaneously. However, benzophenone-3,3',4,4'- tetracarboxylic acid (BPTCA), an aromatic acid, crosslinks cellulose effectively but causes less strength loss to the products under similar conditions. The difference in damages to cellulose fibers was analyzed by using diffusibility and corresponding affinity of the acids to cellulose fibers, which were estimated by their molecular sizes and Hansen solubility parameters (HSP). Both experimental results and theoretical speculations revealed consistent agreement, indicating that smaller acid molecules could diffuse into cellulose fiber more rapidly and deeply, resulting in more acid degradation. Besides, the aliphatic acid such as BTCA has higher molecular affinity than BPTCA to cellulose, causing additional more degradation of cellulose. Both factors are potential reasons of the observed more severe tensile strength loss of the BTCA treated cotton fabrics.
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China; Division of Textiles and Clothing, University of California, Davis, CA 95616, USA.
authors.forename: Bolin
authors.initials: B
authors.lastname: Ji
authors.affiliation: Division of Textiles and Clothing, University of California, Davis, CA 95616, USA.
authors.forename: Cunyi
authors.initials: C
authors.lastname: Zhao
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China; National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai 201620, PR China. Electronic address: klyan@dhu.edu.cn.
authors.forename: Kelu
authors.initials: K
authors.lastname: Yan
authors.affiliation: Division of Textiles and Clothing, University of California, Davis, CA 95616, USA. Electronic address: gysun@ucdavis.edu.
authors.forename: Gang
authors.initials: G
authors.lastname: Sun
mesh_terms: D002073:Butanes / Q000737:chemistry*; D002264:Carboxylic Acids / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry*; D032561:Cotton Fiber; D004058:Diffusion; D055595:Mechanical Phenomena; D012984:Software; D012995:Solubility
chemical_list: D002073:Butanes; D002264:Carboxylic Acids; C513573:1,2,3,4-butanetetracarboxylic acid; D002482:Cellulose
keywords: 1,2,3,4-Butanetetracarboxylic acid (PubChem CID: 15560); 2,4,6-Trihydroxybenzoic acid monohydrate (PubChem CID: 2723793); 3,4-Dihydroxybenzoic acid (PubChem CID: 72); Affinity; Anti-wrinkle; Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride (PubChem CID: 75498); Bromophenol blue (PubChem CID: 8272); Collodion (PubChem CID: 44135439); Dichloroacetic acid (PubChem CID: 6597); Diffusibility; Molecular size; Sodium hypophosphite monohydrate (PubChem CID: 23708894); Strength loss; Succinic acid (PubChem CID: 1110)