Nanomaterials, Free Full-Text
Por um escritor misterioso
Descrição
Due to their diverse and unique physical properties, miktoarm star copolymers (μ-SCPs) have garnered significant attention. In our study, we employed α-monobomoisobutyryl-terminated polydimethylsiloxane (PDMS-Br) to carry out styrenics-assisted atom transfer radical coupling (SA ATRC) in the presence of 4-vinylbenzyl alcohol (VBA) at 0 °C. By achieving high coupling efficiency (χc = 0.95), we obtained mid-chain functionalized PDMS-VBAm-PDMS polymers with benzylic alcohols. Interestingly, matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) analysis revealed the insertion of only two VBA coupling agents (m = 2). Subsequently, the PDMS-VBA2-PDMS products underwent mid-chain extensions using ε-caprolactone (ε-CL) through ring-opening polymerization (ROP) with an efficient organo-catalyst at 40 °C, resulting in the synthesis of novel (PDMS)2-μ-(PCL)2 μ-SCPs. Eventually, novel (PDMS)2-μ-(PCL)2 μ-SCPs were obtained. The obtained PDMS-μ-PCL μ-SCPs were further subjected to examination of their solid-state self-assembly through small-angle X-ray scattering (SAXS) experiments. Notably, various nanostructures, including lamellae and hexagonally packed cylinders, were observed with a periodic size of approximately 15 nm. As a result, we successfully developed a simple and effective reaction combination (Є) strategy (i.e., SA ATRC-Є-ROP) for the synthesis of well-defined PDMS-μ-PCL μ-SCPs. This approach may open up new possibilities for fabricating nanostructures from siloxane-based materials.
Nanocellulose: From Fundamentals to Advanced Applications - Ultimate Destination
Engineering precision nanoparticles for drug delivery
Frontiers Interaction of Nanomaterials with Plants: What Do We Need for Real Applications in Agriculture?
Nanoparticles Types, Classification, Characterization, Fabrication Methods and Drug Delivery Applications
33 Labels Per Sheet Template Awesome Nanomaterials Free Full Text Porous Gold A New Frontier - Best Templates Id…
Nanotechnology
Nanomaterials for Sustainable Energy
Nanomaterials, Free Full-Text
Diagram showing the relevant properties of carbonaceous and metal NMs
de
por adulto (o preço varia de acordo com o tamanho do grupo)
