Author, as appears in the article.: Migliore, Nicola; Guzik, Aleksander; Stuart, Marc C. A.; Pala, Marc; Moreno, Adrian; Lligadas, Gerard; Raffa, Patrizio;
Department: Química Analítica i Química Orgànica
URV's Author/s: Lligadas Puig, Gerard / Moreno Guerra, Adrian / PALÀ SÁNCHEZ, MARC
Keywords: Thermoresponsive Self-assembly Rheology Raft polymerization Polymers Polymeric surfactants Polarity Pet-raft Green solvent Bioderived Amphiphilic random copolymers Amphiphilic polymers
Abstract: We report the synthesis and solution properties of novel biobased thermoresponsive amphiphilic copolymers prepared using N,N-dimethyl lactamide acrylate (DMLA) and ethyl lactate acrylate (ELA) as hydrophilic and hydrophobic monomers, respectively. Copolymers with similar overall molecular weight but different monomer distribution profiles, such as random, diblock, triblock, and random-blocks, were prepared using photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization activated by a Zn-based photoredox catalyst. The synthesized polymers show interesting self-assembly and thermores-ponsive behavior in water, depending on the monomers distribution along the chain. Different critical solution temperatures, in the range of 13-70 degrees C, were observed by tuning the monomers molar ratio and distribution. The formation of aggregates of various types was proven by transmission electron microscopy (TEM). The prepared polymers also display different surface activity with the fully random copolymer being significantly more surface active than block systems. A study of emulsion stabilization was performed with oils of various polarity, showing promising results for applications of these novel polymers as biobased surfactants and water/oil (w/o) emulsion stabilizers.
Thematic Areas: Renewable energy, sustainability and the environment Química Materiais Interdisciplinar Green & sustainable science & technology General chemistry General chemical engineering Farmacia Environmental chemistry Engineering, chemical Engenharias ii Engenharias i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all) Biotecnología Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: marc.pala@urv.cat adrian.moreno@urv.cat marc.pala@urv.cat gerard.lligadas@urv.cat
Author identifier: 0000-0002-8519-1840
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Acs Sustainable Chemistry & Engineering. 10 (45): 14806-14816
APA: Migliore, Nicola; Guzik, Aleksander; Stuart, Marc C. A.; Pala, Marc; Moreno, Adrian; Lligadas, Gerard; Raffa, Patrizio; (2022). Lactic Acid-Derived Copolymeric Surfactants with Monomer Distribution Profile-Dependent Solution and Thermoresponsive Properties. Acs Sustainable Chemistry & Engineering, 10(45), 14806-14816. DOI: 10.1021/acssuschemeng.2c04354
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV