Results 201 to 210 of about 20,638 (260)

Composites of Kaolin and Polydimethylsiloxane

Langmuir, 2008
Kaolin particles were surface-treated with isobutyltrimethoxysilane (IBTMS), hydrogenated tallow (HT), and a polyisobutyl chain-based stabilizer (SAP) to make composites with polydimethylsiloxane (PDMS). IBTMS did not cover the strong acid sites on the kaolin surface and as a result a cross-linking reaction occurred for silanol-terminated PDMS.
Zhang, Yan, Gittins, David I., Skuse, David, Cosgrove, Terence, van Duijneveldt, Jeroen S.   +4 more
openaire   +3 more sources

Bio-functionalisation of polydimethylsiloxane with hyaluronic acid and hyaluronic acid – Collagen conjugate for neural interfacing

Biomaterials, 2011
In this work, polydimethylsiloxane was activated with oxygen plasma and treated with silanes bearing ethylene imine units. Hyaluronic acid was then grafted covalently onto the aminated surfaces.
Zhilian Yue, Xiao Liu, Paul J Molino
exaly   +1 more source

Synthesis of polydimethylsiloxane-block-polystyrene-block-polydimethylsiloxaneviapolysiloxane-based macroinitiator in supercritical CO2

Polymer International, 2005
Polydimethylsiloxane-block-polystyrene-block-polydimethylsiloxane (PDMS-b-PS-b-PDMS) was synthesized by the radical polymerization of styrene using a polydimethylsiloxane-based macroazoinitiator (PDMS MAI) in supercritical CO2.
Mesut Akgun, Sennur Deniz, Salih Dinçer   +2 more
exaly   +2 more sources

Diffusion of free polydimethylsiloxane chains in polydimethylsiloxane elastomer networks

European Polymer Journal, 1995
Abstract The diffusion of four unreactive polydimethylsiloxane chains of various molecular masses into two polydimethylsiloxane (PDMS) elastomer networks has been studied by a Sorption method. This study shows that the shortest chains penetrate more rapidly than the longest one into a PDMS network.
J. Mazan, B. Leclerc, N. Galandrin, G. Couarraze   +3 more
openaire   +1 more source

Supercooling of polydimethylsiloxane

Journal of Applied Polymer Science, 1969
AbstractThis study was undertaken to determine the quenching rates necessary to supercool polydimethylsiloxane. A technique was developed that allowed controlled quenching rates up to 52°C/see and a modified DTA apparatus was used to obtain thermograms during the warm‐up cycle.
J. D. Helmer, K. E. Polmanteer
openaire   +1 more source

Nanometer-Scale Embossing of Polydimethylsiloxane

Langmuir, 2010
Microstructured polydimethylsiloxane (PDMS) is an important and widely used material in biology and chemistry. Here we report that micrometer- and nanometer-scale features can be introduced into the surface of PDMS in a process that is functionally equivalent to embossing. We show that surface features
Maria, Hoh, Jeffrey L, Werbin, Julie K, Dumas, William F, Heinz, Jan H, Hoh   +4 more
openaire   +2 more sources

Study of the Degradation of Polydimethylsiloxanes on Soil

Environmental Science & Technology, 1995
The degradation of polydimethylsiloxanes (silicones) on a spiked standard soil matrix has been studied. Spiked soil was extracted to recover silicones, and the extract was examined by several analytical techniques, including gel permeation chromatography and high-pressure liquid chromatography with an inductively coupled plasma emission spectrometer as
J C, Carpenter, J A, Cella, S B, Dorn
openaire   +2 more sources

Persistence of Polydimethylsiloxane Condom Lubricants

Journal of Forensic Sciences, 2018
AbstractPolydimethylsiloxane (PDMS) is commonly used to lubricate condoms. The detection of PDMS on swabs from complainants can be used to support an allegation of sexual assault. Previous research has focused on establishing analytical techniques for detecting PDMS.
Leah S, Tottey, Sally A, Coulson, Gerhard E, Wevers, Laura, Fabian, Heather, McClelland, Mickayla, Dustin   +5 more
openaire   +2 more sources

A lifespan study of a polydimethylsiloxane in the mouse

Food and Cosmetics Toxicology, 1974
Abstract A silicone antifoam agent containing 94% polydimethylsiloxane silicone oil and 6% finely divided silicon dioxide was given in the diet at levels of 0·25 and 2·5% to groups of mice for 76 wk from weaning. Another group of mice received a single sc injection of 0·2 ml of the antifoam at weaning, and a control group was given a single sc ...
M G, Cutler, A J, Collings, I S, Kiss, M, Sharratt   +3 more
openaire   +2 more sources

Maxillary polydimethylsiloxane glossal prostheses

The Journal of Prosthetic Dentistry, 1981
Abstract A technique was described to mechanically combine acrylic resin with a polydimethylsiloxane (silicone) material. The polysiloxane glossal prosthesis was suspended from the palatal surface of a maxillary complete denture obturator. While a prosthetic tongue is a poor substitute for a most vital structure, every attempt must be made to make ...
S, Taicher, S F, Bergen
openaire   +2 more sources