In situ probing of polymer grafting from solution onto solid substrates by nonlinear optics

Langmuir ◽  
1992 ◽  
Vol 8 (5) ◽  
pp. 1392-1397 ◽  
Author(s):  
Rachel Yerushalmi-Rozen ◽  
Jacob Klein ◽  
Garry Berkovic
Keyword(s):  
Nonlinear Optics ◽  
Polymer Grafting ◽  
Solid Substrates ◽  
Grafting From

scholarly journals Controlling nanostructure and mechanical properties in triblock copolymer/monomer blends via reaction-induced phase transitions

Soft Matter ◽  
2021 ◽  
Author(s):  
Vincent M. Torres ◽  
Jacob A. LaNasa ◽  
Bryan D. Vogt ◽  
Robert J. Hickey
Keyword(s):  
Mechanical Properties ◽  
Phase Transitions ◽  
Triblock Copolymer ◽  
Polymer Grafting ◽  
Aba Triblock Copolymer ◽  
Grafting From

In situ polymer grafting from the mid-block of an ABA triblock copolymer leads to morphology transitions and enhanced mechanical properties.

scholarly journals Optical nanomanipulation on solid substrates via optothermally-gated photon nudging

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Jingang Li ◽  
Yaoran Liu ◽  
Linhan Lin ◽  
Mingsong Wang ◽  
Taizhi Jiang ◽  
...  
Keyword(s):  
Colloidal Particles ◽  
Solid Substrate ◽  
Optical Scattering ◽  
Functional Nanostructures ◽  
Non Invasive ◽  
Solid Substrates ◽  
All Optical ◽  
Scattering Force ◽  
Reconfigurable Assembly

AbstractConstructing colloidal particles into functional nanostructures, materials, and devices is a promising yet challenging direction. Many optical techniques have been developed to trap, manipulate, assemble, and print colloidal particles from aqueous solutions into desired configurations on solid substrates. However, these techniques operated in liquid environments generally suffer from pattern collapses, Brownian motion, and challenges that come with reconfigurable assembly. Here, we develop an all-optical technique, termed optothermally-gated photon nudging (OPN), for the versatile manipulation and dynamic patterning of a variety of colloidal particles on a solid substrate at nanoscale accuracy. OPN takes advantage of a thin surfactant layer to optothermally modulate the particle-substrate interaction, which enables the manipulation of colloidal particles on solid substrates with optical scattering force. Along with in situ optical spectroscopy, our non-invasive and contactless nanomanipulation technique will find various applications in nanofabrication, nanophotonics, nanoelectronics, and colloidal sciences.

Direct Growth of Polyaniline Chains from Nitrogen Site of N-Doped Carbon Nanotubes for High Performance Supercapacitor

2014 ◽  
Vol 93 ◽  
pp. 164-167 ◽  
Author(s):  
Joon Won Lim ◽  
Atta Ul Haq ◽  
Sang Ouk Kim
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Chemical Structure ◽  
Carbon Materials ◽  
Graphitic Carbon ◽  
Polymer Grafting ◽  
Aniline Monomer ◽  
Defect Site ◽  
Direct Growth ◽  
Grafting From

Polymer grafting from graphitic carbon materials has been explored for several decades. Currently existing methods mostly employ harsh chemical treatment to generate defect site in graphitic carbon plane, which are used as active site for polymerization of precursors. Unfortunately, the treatment cause serious degradation of chemical structure and material properties. Here, we present a straightforward route for growth of polyaniline chain from nitrogen (N)-sites of carbon nanotubes. N site in the CNT wall initiates the polymerization of aniline monomer, which generates seamless hybrids composed of polyaniline directly grafted onto the CNT walls. The synthesized hybrids show excellent synergistic electrochemical performance, and are employed for electrodes of pseudo-capacitor. This approach offers an efficient way to obtain hybrid system consisting of conducting polymers directly grafted from graphitic dopant sites.

scholarly journals Polymer grafting from a metallo‐centered enzyme improves activity in non‐native environments

2020 ◽  
Author(s):  
Marina Kovaliov ◽  
Borui Zhang ◽  
Dominik Konkolewicz ◽  
Katarzyna Szcześniak ◽  
Stefa Jurga ◽  
...  
Keyword(s):  
Polymer Grafting ◽  
Grafting From

scholarly journals Straightforward synthesis of hyperbranched polymer/graphene nanocomposites from graphite oxide via in situ grafting from approach

2012 ◽  
Vol 35 (5) ◽  
pp. 795-800 ◽  
Author(s):  
QIUHONG XU ◽  
YIWEN GONG ◽  
YUAN FANG ◽  
GUOHUA JIANG ◽  
YIN WANG ◽  
...  
Keyword(s):  
Graphite Oxide ◽  
Hyperbranched Polymer ◽  
Graphene Nanocomposites ◽  
Grafting From

Polymer Grafting from CdS Quantum Dots via AGET ATRP in Miniemulsion

Small ◽  
2007 ◽  
Vol 3 (7) ◽  
pp. 1230-1236 ◽  
Author(s):  
Ana C. C. Esteves ◽  
Lindsay Bombalski ◽  
Tito Trindade ◽  
Krzysztof Matyjaszewski ◽  
Ana Barros-Timmons
Keyword(s):  
Quantum Dots ◽  
Polymer Grafting ◽  
Cds Quantum Dots ◽  
Aget Atrp ◽  
Grafting From

Preparation of Particulate Core-Shell Metal Oxide-Polymer Nanocomposites by a Sol-Gel Approach

2004 ◽  
Vol 847 ◽  
Author(s):  
Guido Kickelbick ◽  
Dieter Holzinger
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Sol Gel ◽  
Coupling Agents ◽  
Second Step ◽  
Oxide Nanoparticles ◽  
Metal Alkoxides ◽  
Silane Coupling Agents ◽  
Grafting From

ABSTRACTTwo general microemulsion-based routes towards surface-functionalized metal oxide nanoparticles serving as macroinitiators in “grafting from” atom transfer radical polymerization (ATRP), are presented. Metal alkoxides modified with several β-diketone derivatives carrying potential ATRP-initiating sites served as precursors for the particle formation leading in an solgel process to in situ-functionalized titanium-, zirconium-, tantalum-, vanadium-, yttrium-, and iron oxide nanoparticles. The obtained systems were compared with metal oxide nanoparticles prepared by using metal salts as precursors which were functionalized in a second step with ATRP-initiator containing silane coupling agents. The obtained particles had diameters between 5 nm and 640 nm and served as multifunctional polymerization initiators in ATRP using styrene and methyl methacrylate as monomers.

Sign in / Sign up

Export Citation Format

Share Document