Novel Well-defined Polystyrene-block-Poly(lactide-co-glycolide) Block Copolymers
نویسندگان
چکیده
A facile preparation of polystyrene-block-poly(lactide-co-glycolide) PS-b-PLGA block copolymers was reported in detail. Well-defined were successfully obtained via living anionic polymerization and ring-opening polymerization. First, hydroxyl-terminated linear polystyrenes prepared by The resulting polymers used as macroinitiators for copolymerization lactide glycolide the presence 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) a catalyst dichloromethane at ambient temperature. Transesterification formation DBU-initiated minimized optimizing concentration. Three synthesized various molecular weights from 5000 g/mol to 33600 with low polydispersity. well-defined followed nuclear magnetic resonance spectroscopy size-exclusion chromatography. Thermal properties investigated thermal gravimetric analysis differential scanning calorimetry. morphology using small-angle X-ray scattering bulk grazing incidence well atomic force microscopy thin film demonstrating organized nanostructures uniform domain sizes. Overall, this manuscript describes an expanded polymer toolbox PLGA-based next-generation lithography applications.
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ژورنال
عنوان ژورنال: Journal of the Turkish Chemical Society, Section A: Chemistry
سال: 2023
ISSN: ['2149-0120']
DOI: https://doi.org/10.18596/jotcsa.1184492