A5053577573- Advanced Polymer Synthesis and Characterization
- Polymer Surface Interaction Studies
- Block Copolymer Self-Assembly
- Innovative Microfluidic and Catalytic Techniques Innovation
- Pickering emulsions and particle stabilization
- Nanoparticle-Based Drug Delivery
- Photopolymerization techniques and applications
- Nanopore and Nanochannel Transport Studies
- Antimicrobial Peptides and Activities
- Energy Harvesting in Wireless Networks
- Surfactants and Colloidal Systems
- Polymer crystallization and properties
- Nanoplatforms for cancer theranostics
- Microfluidic and Capillary Electrophoresis Applications
- Luminescence and Fluorescent Materials
- Molecular Communication and Nanonetworks
- Bacterial biofilms and quorum sensing
- Analytical Chemistry and Chromatography
- Machine Learning in Materials Science
- Modular Robots and Swarm Intelligence
- Photochromic and Fluorescence Chemistry
- Antimicrobial agents and applications
- Dendrimers and Hyperbranched Polymers
ETH Zurich
2019-2022
University of California, Santa Barbara
2018-2020
Monash University
2017
Australian Regenerative Medicine Institute
2017
Institut Européen des Membranes
2006
Dispersity significantly affects the properties of polymers. However, current methods for controlling polymer dispersity are limited to bimodal molecular weight distributions, adulterated chains, or low end-group fidelity and rely on feeding reagents, flow-based, multicomponent systems. To overcome these limitations, we report a simple batch system whereby photoinduced atom transfer radical polymerisation is exploited as convenient versatile technique control both homopolymers block...
Photo-ATRP has recently emerged as a powerful technique that allows for oxygen-tolerant polymerizations and the preparation of polymers with low dispersity high end-group fidelity. However, effect various photo-ATRP components on oxygen consumption polymerization remains elusive. Herein, we employ an in situ probe UV-vis spectroscopy to elucidate effects ligand, initiator, monomer, solvent consumption. We found choice significantly impacts rate at which is consumed can subsequently affect...
Although dispersity (Đ) plays an important role in controlling polymer properties, there are very few chemical methods that can sufficiently tune it. Here we report a simple, batch, and environmentally benign photoinduced iron-catalyzed ATRP methodology enables the efficient control of Đ for both homopolymers block copolymers. We show by judiciously varying concentration FeBr3/TBABr catalyst, range dispersities be obtained (1.18 < 1.80) while maintaining monomodal molecular weight...
A facile, high-scale, and versatile technique to prepare biocompatible nanoparticles with tailorable properties from thermoresponsive macro-CTAs macro-stabilizers.
Abstract Controlled polymerizations have enabled the production of nanostructured materials with different shapes, each exhibiting distinct properties. Despite importance shape, current morphological transformation strategies are limited in polymer scope, alter chemical structure, require high temperatures, and fairly tedious. Herein we present a rapid versatile strategy that operates at room temperature does not impair structure constituent polymers. By simply adding molecular transformer...
Molecular architecture plays a key role in the self-assembly of block copolymers, but few studies have systematically examined influence chain connectivity on tetrahedrally close-packed (TCP) sphere phases. Here, we report versatile material platform comprising two blocks with substantial conformational asymmetry, A = poly(trifluoroethyl acrylate) and B poly(dodecyl acrylate), use it to compare phase behavior AB diblocks, ABA triblocks, (AB)n radial star copolymers n 3 or 4. Each forms TCP...
Abstract Dispersity significantly affects the properties of polymers. However, current methods for controlling polymer dispersity are limited to bimodal molecular weight distributions, adulterated chains, or low end‐group fidelity and rely on feeding reagents, flow‐based, multicomponent systems. To overcome these limitations, we report a simple batch system whereby photoinduced atom transfer radical polymerisation is exploited as convenient versatile technique control both homopolymers block...
Herein we present a simple batch method to control polymer dispersity using mixture of two ATRP initiators with different reactivities.
Size, shape, and charge are key parameters of nanoparticles, variations in these can significantly impact their properties applications. Among various nanoparticle synthesis methods, the combination low-energy miniemulsions with reversible addition-fragmentation chain-transfer (RAFT) polymerization allows for facile, rapid, environmentally friendly preparation uniform nanoparticles. However, this method cannot, yet, simultaneously control size, thereby limiting its potential Here we report...
Nanoemulsion technology enables the production of uniform nanoparticles for a wide range applications. However, existing nanoemulsion strategies are limited to spherical nanoparticles. Here, we describe low-energy method produce with various morphologies. By selecting macro-RAFT agent (poly(di(ethylene glycol) ethyl ether methacrylate-
The photoinduced atom transfer radical polymerization of traditionally challenging hydrophobic monomers (lauryl C12, stearyl C18, and docosyl C22-acrylate) novel cyclic isomers (C12, C16, C17) is reported. By the judicious selection commercially available solvents catalytic systems, polymers with a high degree control over dispersity (Đ ≈ 1.1) end-group fidelity were obtained wide range molecular weights. This level provides access to unique materials (random, block, homopolymers)...
Abstract In photo‐atom transfer radical polymerization (ATRP), dispersity can be efficiently controlled by varying the deactivator concentration. this work, we provide mechanistic insight into dispersity‐controlled photo‐ATRP conducting detailed kinetics under a range of conditions. For lower polymers, conventional first‐order kinetic profile was observed accompanied linear evolution number average molecular weight ( M n ) with conversion while reactions reached moderate to high conversions...
Abstract Controlled polymerizations have enabled the production of nanostructured materials with different shapes, each exhibiting distinct properties. Despite importance shape, current morphological transformation strategies are limited in polymer scope, alter chemical structure, require high temperatures, and fairly tedious. Herein we present a rapid versatile strategy that operates at room temperature does not impair structure constituent polymers. By simply adding molecular transformer...
Study of the composition, lenght and chemical structure surface-active statistical copolymers in low-energy miniemulsions.