title: Effect of Linear-Hyperbranched Amphiphilic Phosphate Esters on Collagen Fibers.
abstract: The surfactants of the linear-hyperbranched phosphate esters (PAMAMGn-3-Ps) have been constructed through random multibranching esterification of lauroyl chloride and phosphate ester as a branching agent. Subsequently, a series of surfactant products were obtained. Benefiting from the amphiphilic structure with the hydrophilic core and many hydrophobic tails, PAMAMGn-3-Ps were able to self-assemble into nanomicelles in aqueous media. Importantly, the polymers show low critical micelle concentrations (CMCs) and small particle sizes. Here, PAMAMG1-3-P was applied in the collagen fibers of leather to improve the fibers' distance and mechanical property of collagen fibers. Additionally, the polymers display significant flexibility, which could replace ordinary fatliquor in the future. The result provides a new application of using linear-hyperbranched amphiphilic phosphate esters into traditional leather materials to enhance the performance of collagen fibers.
authors.affiliation: College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology; Shaanxi Research Institute of Agricultural Products Processing Technology , Xi'an, Shaanxi, People's Republic of China 710021.
authors.forename: Xuechuan
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology; Shaanxi Research Institute of Agricultural Products Processing Technology , Xi'an, Shaanxi, People's Republic of China 710021.
authors.forename: Xiaoxiao
authors.identifier: http://orcid.org/0000-0001-8039-6647
authors.initials: X
authors.lastname: Guo
authors.affiliation: College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology; Shaanxi Research Institute of Agricultural Products Processing Technology , Xi'an, Shaanxi, People's Republic of China 710021.
authors.forename: Haijun
authors.initials: H
authors.lastname: Wang
authors.affiliation: College of Arts and Sciences, Shaanxi University of Science and Technology , Xi'an, Shaanxi, People's Republic of China 710021.
authors.forename: Peiying
authors.initials: P
authors.lastname: Guo
mesh_terms: D003094:Collagen / Q000737:chemistry*; D004952:Esters / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D008823:Micelles; D010316:Particle Size; D010710:Phosphates / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry; D013501:Surface-Active Agents
chemical_list: D004952:Esters; D008823:Micelles; D010710:Phosphates; D011108:Polymers; D013501:Surface-Active Agents; D003094:Collagen
keywords: PAMAM; amphiphilic; collagen fibers; cross-linking; phosphorylation