Nonionic UCST–LCST Diblock Copolymers with Tunable Thermoresponsiveness Synthesized via PhotoRAFT Polymerization
نویسندگان
چکیده
Nonionic double thermoresponsive diblock copolymers with both upper critical solution temperature (UCST) and lower (LCST) phase transitions are synthesized via eco-friendly photoiniferter reversible addition–fragmentation chain transfer polymerization. While the biocompatible random copolymer of di(ethylene glycol) methyl ether methacrylate oligo(ethylene accounts for LCST transition, block polymethacrylamide from an easily accessible monomer low health hazard is responsible UCST transition. Temperature-dependent dynamic light scattering measurements confirm formation micellar aggregates in water at temperatures below UCST- above LCST-type cloud points. Additionally, interval between LCST, where blocks dissolved, can be tailored by varying comonomer ratio block. With these unique advantages, presented work introduces a new polymer system design schizophrenic polymers.
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ژورنال
عنوان ژورنال: Macromolecular Rapid Communications
سال: 2021
ISSN: ['1022-1336', '1521-3927']
DOI: https://doi.org/10.1002/marc.202000648