Poly(2-nonyl-2-oxazoline-block-2-ethyl-2-oxazoline) block copolymer micelles were investigated as an alternative system to the approach proposed by He and Lodge (Y. He and T. P. Lodge, J. Am. Chem. Soc., 2006, 128, 12666) for the thermoreversible transfer of micelles between a hydrophobic ionic liquid phase and an aqueous phase; this work describes the possibility of thermally triggering and controlling this process.
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http://dx.doi.org/10.1039/b804179b | DOI Listing |
J Org Chem
November 2024
Laboratory of Advanced Computation and Theory for Materials and Chemistry, Department of Chemistry, National Institute of Technology Warangal (NITW), Warangal, Telangana 506004, India.
The thermal electrocyclic ring opening of fused -cyclobutene to ,-diene is prohibited according to the Woodward-Hoffmann (WH) rules; nonetheless, experiments provide firm evidence for their formation. However, the mechanism, electronic structure, and behavior during the reaction are ambiguous. Herein, we attempt to gain insights into the mechanism of thermal ring opening in four -heterocycles containing a conjugated diene as the core skeleton.
View Article and Find Full Text PDFRSC Adv
February 2024
Major in Nano·Semiconductor, School of Electronic Engineering, Kyonggi University Suwon Gyeonggi-do 16227 Republic of Korea
Macromolecules
January 2024
Department of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K.
Sterically-stabilized diblock copolymer nanoparticles comprising poly(propylene oxide) (PPO) cores are prepared via reverse sequence polymerization-induced self-assembly (PISA) in aqueous solution. '-Dimethylacrylamide (DMAC) acts as a cosolvent for the weakly hydrophobic trithiocarbonate-capped PPO precursor. Reversible addition-fragmentation chain transfer (RAFT) polymerization of DMAC is initially conducted at 80% w/w solids with deoxygenated water.
View Article and Find Full Text PDFSmall
March 2024
School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Kolkata, 700032, India.
Next-generation medical and consumer electrical devices require soft, flexible materials. Piezoelectric materials, capable of converting mechanical stress into electrical energy, are of interest across various fields. Chiral nanostructures, with inherent chirality, have emerged as potential piezoelectric materials.
View Article and Find Full Text PDFACS Appl Mater Interfaces
October 2023
Materials Science and Technology Division Council of Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science and Technology (NIIST), Trivandrum 695019, Kerala, India.
Polymer hybrid materials that contain reinforcements with a preferred orientation have received growing attention because of their unique properties and promising applications in multifunctional fields. Herein, anisotropic poly(vinylidene fluoride) (PVDF)/MXene hybrid aerogels with highly ordered delaminated MXene nanosheets and anisotropic porous structures were successfully fabricated by unidirectional freezing of thermoreversible gels followed by a freeze-drying process. The strong interfacial interactions between PVDF chains and abundant functional groups on the surface of MXene enabled the orientation of MXene nanosheets at the boundaries of ice crystals as the semicrystalline PVDF and delaminated MXene nanosheets are squeezed along the freezing direction.
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