Catalytic and ionic cross-linking actions of l-glutamate salt for the modification of cellulose by 1, 2, 3, 4-butanetetracarboxylic acid. (1st March 2019)

• Record Type: Journal Article
• Authors: Ji, Bolin; Tang, Peixin; Hu, Chunyan; Yan, Kelu
• Is Part Of: Carbohydrate polymers. Volume 207(2019)
• Page Start: 288
• Page End: 296
• Publication Date: 2019-03-01
• Subjects: 1, 2, 3, 4-butanetetracarboxylic acid (PubChem CID: 15560) -- Sodium hypophosphite monohydrate (PubChem CID: 23708894) -- l-glutamic acid (PubChem CID: 33032) -- Sodium hydroxide (PubChem CID: 14798) -- Urea (PubChem CID: 1176) -- Ammonia (PubChem CID: 1110); Eco-friendly -- l-glutamate -- Ionic cross-linking -- Anti-wrinkle; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2018.11.090
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Sodium l -glutamate salt efficiently catalyzed the reactions of BTCA with cellulose. l -glutamic acid functioned as an extender for cross-linking of BTCA with cellulose. l -glutamate salt treated fabrics showed good resilience and high strength retention. l -glutamate salt may be a good alternative for sodium hypophosphite. Abstract: The sodium l -glutamate is reported as an efficient catalyst for the cross-linking between 1, 2, 3, 4-butanetetracarboxylic acid (BTCA) and cellulose. Results presented ester absorbance of the treated fabrics strongly increased in the presence of the homemade l -glutamate salt, a mixture of l -glutamic acid (LGA) and NaOH at a specific ratio. Importantly, anti-wrinkle properties of the treated fabrics were significantly improved. Based on the relative concentration calculation, l -glutamate promoted the reaction of BTCA with cellulose by accelerating the formation of BTCA anhydrides and the esterification of anhydrides with cellulose. Besides, the improved anti-wrinkle property was partially attributed to the fact that the generated LGA reacted with cellulose and formed ionic cross-linking networks through amino groups with carboxyl groups in BTCA, which was confirmed by the Fourier transform infrared spectra and the computational calculations. Through detailed comparisons, l -glutamate catalyzed fabrics showed as good durability as sodium hypophosphite, indicating a possible alternative for phosphorus-containing catalysts.