Chemistry in adsorbed monolayers. 2. Thermal and photochemical grafting reactions at the polymer-filler interface

Langmuir ◽  
1990 ◽  
Vol 6 (6) ◽  
pp. 1123-1132 ◽  
Author(s):  
Colette E. McGarvey ◽  
David A. Holden
Keyword(s):  
Polymer Filler ◽  
Grafting Reactions ◽  
Photochemical Grafting

Two‐Distinct Polymer Ubiquitin Conjugates by Photochemical Grafting‐From

2021 ◽  
pp. 2100091
Author(s):  
Kevin M. Burridge ◽  
Ryan F. Parnell ◽  
Madison M. Kearns ◽  
Richard C. Page ◽  
Dominik Konkolewicz
Keyword(s):  
Photochemical Grafting ◽  
Grafting From

scholarly journals Radiation-Induced Asymmetric Grafting of Different Monomers into Base Films to Prepare Novel Bipolar Membranes

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 2028
Author(s):  
Shin-ichi Sawada ◽  
Yasunari Maekawa
Keyword(s):  
Acrylic Acid ◽  
Anion Exchange ◽  
Graft Polymerization ◽  
The Other ◽  
Practical Applications ◽  
Bipolar Membranes ◽  
Graft Polymers ◽  
Grafting Reactions ◽  
Radiation Induced

We prepared novel bipolar membranes (BPMs) consisting of cation and anion exchange layers (CEL and AEL) using radiation-induced asymmetric graft polymerization (RIAGP). In this technique, graft polymers containing cation and anion exchange groups were introduced into a base film from each side. To create a clear CEL/AEL boundary, grafting reactions were performed from each surface side using two graft monomer solutions, which are immiscible in each other. Sodium p-styrenesulfonate (SSS) and acrylic acid (AA) in water were co-grafted from one side of the base ethylene-co-tetrafluoroethylene film, and chloromethyl styrene (CMS) in xylene was simultaneously grafted from the other side, and then the CMS units were quaternized to afford a BPM. The distinct SSS + AA- and CMS-grafted layers were formed owing to the immiscibility of hydrophilic SSS + AA and hydrophobic CMS monomer solutions. This is the first BPM with a clear CEL/AEL boundary prepared by RIAGP. However, in this BPM, the CEL was considerably thinner than the AEL, which may be a problem in practical applications. Then, by using different starting times of the first SSS+AA and second CMS grafting reactions, the CEL and AEL thicknesses was found to be controlled in RIAGP.

An Equivalent Circuit Approach to Evaluating Conductivity of Polymer-Filler Composites

2002 ◽  
Vol 734 ◽  
Author(s):  
Vladislav Skorokhod
Keyword(s):  
Equivalent Circuit ◽  
Equivalent Circuit Model ◽  
Conductive Filler ◽  
Size Ratio ◽  
Particulate Composites ◽  
Mathematical Representation ◽  
Matrix Size ◽  
Linear System Of Equations ◽  
Polymer Filler

ABSTRACTAn equivalent circuit model of electrical conduction in polymer-filler particulate composites was developed in this study. The equivalent circuit was constructed for an individual composite particle with a sub-monolayer of conductive filler, where the filler particles play the role of circuit nodes, and inter-particle contacts are represented by resistors between the nodes. The mathematical representation of the equivalent circuit in the form of a linear system of equations for nodal potentials was solved numerically with Matlab software to calculate conductance of the composite as a function of the amount of conductive filler, filled fraction of the monolayer, filler-to-matrix size ratio and the degree of structuredness (non-randomness) of the filler material. Additionally, percolation concentrations and statistical distributions of composite conductance were calculated as functions of the filler-to-matrix size ratio.

Flash grafting of functional random copolymers for surface neutralization

2014 ◽  
Vol 2 (25) ◽  
pp. 4909-4917 ◽  
Author(s):  
F. Ferrarese Lupi ◽  
T. J. Giammaria ◽  
G. Seguini ◽  
M. Ceresoli ◽  
M. Perego ◽  
...  
Keyword(s):  
Thermal Processing ◽  
Silicon Surface ◽  
Rapid Thermal Processing ◽  
Random Copolymer ◽  
Random Copolymers ◽  
Grafting Reactions

Rapid Thermal Processing (RTP) technology was employed to perform flash grafting reactions of a hydroxyl terminated poly(styrene-r-methylmethacrylate) random copolymer to a silicon surface.

Effect of Hard Polymer Filler Particles on Polymer Diffusion in a Low-TgLatex Film

1998 ◽  
Vol 31 (16) ◽  
pp. 5290-5299 ◽  
Author(s):  
Jianrong Feng ◽  
Ewa Odrobina ◽  
Mitchell A. Winnik
Keyword(s):  
Polymer Diffusion ◽  
Polymer Filler ◽  
Hard Polymer ◽  
Filler Particles

Thermo Sensitivity of Polysiloxane/Silica Nanocomposites Affected by the Structure of Polymer-Filler Interface

2016 ◽  
Vol 16 (3) ◽  
pp. 2725-2730 ◽  
Author(s):  
Qian Zhang ◽  
Yufeng Zhou ◽  
Fengmei Yu ◽  
Lixian Song ◽  
Sumin Sun ◽  
...  
Keyword(s):  
Silica Nanocomposites ◽  
Polymer Filler ◽  
Thermo Sensitivity

Highly Stable Molecular Layers on Nanocrystalline Anatase TiO2through Photochemical Grafting

Langmuir ◽  
2009 ◽  
Vol 25 (18) ◽  
pp. 10676-10684 ◽  
Author(s):  
Ryan A. Franking ◽  
Elizabeth C. Landis ◽  
Robert J. Hamers
Keyword(s):  
Photochemical Grafting ◽  
Molecular Layers
Sign in / Sign up

Export Citation Format

Share Document