Nanomaterials, Free Full-Text
Por um escritor misterioso
Last updated 07 julho 2024
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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.
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Tribology of carbon nanotubes - About Tribology
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Surfactant-Free Colloidal Syntheses of Gold-Based Nanomaterials in Alkaline Water and Mono-alcohol Mixtures
Surfactant-Free Colloidal Syntheses of Gold-Based Nanomaterials in Alkaline Water and Mono-alcohol Mixtures
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Email Extractor 6.0.0.2 Free - Colaboratory
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PDF] Nanomaterials by Dieter Vollath eBook
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Articles by Molly Thomas's Profile, CTV News Journalist
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Engineering precision nanoparticles for drug delivery
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Near-infrared light triggerable deformation-free polysaccharide double network hydrogels - Chemical Communications (RSC Publishing) DOI:10.1039/C4CC02216E
Nanoparticles Types, Classification, Characterization, Fabrication Methods and Drug Delivery Applications
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Papers Please Download Pt Br Gratis - Colaboratory
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Nanotechnology - Definition and Introduction
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Med Cards Template Unique Nanomaterials Free Full Text Nitrogen and Oxygen
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