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

Keywords: Amphiphilic polymers Amphiphilic random copolymers Bioderived Green solvent Pet-raft Polarity Polymeric surfactants Polymers Raft polymerization Rheology Self-assembly Thermoresponsive

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: Astronomia / física Biotecnología Chemical engineering (all) Chemical engineering (miscellaneous) Chemistry (all) Chemistry (miscellaneous) Chemistry, multidisciplinary Ciência de alimentos Ciências agrárias i Ciências ambientais Engenharias i Engenharias ii Engineering, chemical Environmental chemistry Farmacia General chemical engineering General chemistry Green & sustainable science & technology Interdisciplinar Materiais Química Renewable energy, sustainability and the environment

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: gerard.lligadas@urv.cat

Author identifier: 0000-0002-8519-1840

Record's date: 2023-02-23

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://pubs.acs.org/doi/10.1021/acssuschemeng.2c04354

Papper original source: Acs Sustainable Chemistry & Engineering.

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, (), -. DOI: 10.1021/acssuschemeng.2c04354

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Article's DOI: 10.1021/acssuschemeng.2c04354

Entity: Universitat Rovira i Virgili

Journal publication year: 2022

Publication Type: Journal Publications