期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 8, 期 2, 页码 1276-1284出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b06599
关键词
green solvent; sustainable copolymers; amphiphilic; photopolymerization; living radical polymerization; emulsion polymerization
资金
- Spanish Ministerio de Ciencia, Innovacion y Universidades [MAT2017-82669-R, BES-2015-072662]
- Serra Hunter Programme of the Government of Catalonia
- University Rovira i Virgili [DL003536]
- National Science Foundation [DMR-1066116, DMR-1807127]
- P. Roy Vagelos Chair at the University of Pennsylvania
- European Commission within a H2020-NMBP-TR-IND-2018, EVPRO grant [814495-2]
We report a new strategy toward the development of block copolymer surfactants from chemicals of the lactic acid family. A particularly unique aspect of this work is the use of green solvents as biobased platform chemicals to generate well-defined and nanostructure-forming materials. Herein, efficient functionalization of ethyl lactate (EL) and N,N-dimethyl lactamide (DML) solvents with acrylate groups generated monomers that could be polymerized by the photoinduced copper-catalyzed living radical polymerization process to yield polymeric materials with different water solubilities. These lactic acid-derived monomers were used as a major component in well-defined diblock copolymers composed of poly(EL acrylate) and poly(DML acrylate) segments as hydrophobic and hydrophilic building blocks, respectively. The resulting amphiphilic copolymers could self-assemble in aqueous solution to form nanoparticles with different morphologies (e.g., large-compound micelles and vesicles). Subsequently, the formed amphiphilic polymers were employed as efficient stabilizers in the emulsion polymerization of methyl methacrylate and styrene, offering a facile method for the synthesis of well-defined and stable polymer latexes in the range of 100-200 nm, demonstrating the practical significance of these biobased polymers in nanomaterial synthesis.
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