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Wednesday, July 29, 2020 | History

4 edition of The surface modification of expanded poly(tetrafluoroethylene) via metallization and solution phase chemistry. found in the catalog.

The surface modification of expanded poly(tetrafluoroethylene) via metallization and solution phase chemistry.

Timothy Ryan Cregan

The surface modification of expanded poly(tetrafluoroethylene) via metallization and solution phase chemistry.

by Timothy Ryan Cregan

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  • 4 Currently reading

Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

Thesis (M.Sc.) -- University of Toronto, 1994.

SeriesCanadian theses = -- Thèses canadiennes
The Physical Object
FormatMicroform
Pagination2 microfiches : negative. --
ID Numbers
Open LibraryOL17026562M
ISBN 100315961147
OCLC/WorldCa222149993

In addition, plasma modification of the PE surface, followed with grafting Au-nanoparticles, significantly increased the attractiveness of the PE surface for the adhesion and growth of VSMC, and.   The biological response on the performed surface materials modification is strongly dependent on the changes in surface properties (e.g., surface morphology, roughness, and composition). The modification of the surface of carbon-coated high-molecular-weight polyethylene (HMWPE) by different laser wavelengths (λ = , , and nm) was.

  Read "Surface modification of plasma‐pretreated expanded poly (tetrafluroethylene) films by graft copolymerization, Surface and Interface Analysis" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. “Surface Modification of Poly(biphenyl dianhydride-para-phenylene diamine) (BPDA-PDA) and Poly (pyromellitic dianhydride-oxydianiline) (PMDA-ODA) Polyimides with UV Photo-oxidation.” Journal of Adhesion Science and Technology, 24 ():

Tailoring the surface chemistry of CoCr alloys is of tremendous interest in many biomedical applications. In this work, we show that CoCr can be modified by diazonium electrografting provided the surface is not homogeneously covered with an oxide layer. Cyclic voltammetry (CV) and X .   International Journal of Materials Science and Applications Volume 7, Issue 1, January , Pages: Received: Sep. 12, ; Accepted: Sep. 26, ; Published.


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The surface modification of expanded poly(tetrafluoroethylene) via metallization and solution phase chemistry by Timothy Ryan Cregan Download PDF EPUB FB2

Institute of Polymer Research Dresden, Department of Surface Chemistry, Hohe Str. 6, D‐ Dresden, Germany Search for more papers by this author First published: January Cited by: In addition, the adhesion properties of the oxygen plasma pretreated ePTFE films could be further improved by post-grafting polymerization of AAm onto the surface of ePTFE film.

A 50 W oxygen plasma treatment for 60 s and grafting polymerization of 20 wt.% AAm at 80 °C for 3 h gave an improvement of ePTFE peel strength from to N/ by:   The adhesion property of the modified ePTFE sheet was evaluated using a Q Test V instrument (MTS Ltd) with a five-layer specimen illustrated in Scheme 1.A 4×1 inch 2 stainless-steel strip was bonded to each side of a ×1 inch 2 ePTFE film with epoxy.

The epoxy (Nan Pao-Bond, ) was applied to the stainless-steel strips and the ePTFE sheet was placed between the by:   The adhesion properties of the ePTFE surface were also improved by modification on the polymer surface by grafting polymerization.

Various hydrophilic compounds of acrylic amide (AAm), glycidyl methacrylate (GMA) and 2-hydroxyehtyl methacrylate (HEMA) were used as precursor monomers. The grafted ePTFE film was prepared by a two-step by:   The mean pore size of the e-PTFE membranes was about μm, with a thickness of μm.

The expanded PTFE membranes were cut to 5 cm × 5 cm dimensions and provided as specimens for the surface modification experiments. The sample sheets were prepared by Soxhlet by:   Radio frequency (RF) plasma treatment in O 2 was applied to modify the surface of poly (l-lactic acid) (PLLA) and poly (d, l-lactic acid-coglycolic acid) (PLGA) as biodegradable surface structure, morphology, wettability and surface chemistry of treated films were characterized by water drop contact angle measurement, scanning electron microscope (SEM), optical invert.

Surface Modifications of Expanded Poly(tetrafluoroethylene) Sheets Assisted by CO2 Antenna Coupling Microwave Plasma. Macromolecules33 (15), DOI: /maq. Surface Modification by Polyzwitterions of the Sulfabetaine-Type, and Their Resistance to Biofouling by Eric Schönemann 1, André Laschewsky 1,2,*, Erik Wischerhoff 2, Julian Koc 3 and Axel Rosenhahn 3.

Surface Modification of Nanoporous Poly(ϵ-caprolactone) Membrane with Poly(ethylene glycol) to Prevent Biofouling: Part II. Effects of Graft Density and Chain Length. International Journal of Polymeric Materials59 (11), Surface modification of polyisobutylene via grafting amino acid-based poly (acryloylaminocaproic acid) as multifunctional material.

Colloids and Surfaces B: Biointerfaces, DOI: /fb Fan-Ning Meng, Meng-Qian Zhang. Surface Modification of an Expanded Poly(tetrafluoroethylene) Implant. By Adrienne Frances Chandler-Temple. Abstract. Facial reconstructive surgery involves prosthetic implants.

The success of these implants depends on the mechanical, architectural, and surface properties of the implant material. The mechanical and architectural properties of. Chemical Process Equipment: Selection and Design, 2nd edition By J. Couper, W. Penney, J. Fair, S. Walas. Elsevier/Gulf Professional Publishing: Oxford.

About this book This book addresses surface modification techniques, which are critical for tailoring and broadening the applications of naturally occurring biopolymers. Biopolymers represent a sustainable solution to the need for new materials in the auto, waste removal, biomedical device, building material, defense, and paper industries.

Physical adsorbed modification relies on surface bound materials adsorbed via mainly hydrophobic interaction (generally between the hydrophobic PDMS surface and the hydrophobic terminal of, say, amphiphilic molecules or copolymers) or electrostatic interactions while covalent modifications include self assembled monolayer (SAM) and surface.

Nie F-Q, Xu Z-K, Huang X-J, Ye P and Wu J Acrylonitrile-Based Copolymer Membranes Containing Reactive Groups: Surface Modification by the Immobilization of Poly(ethylene glycol) for Improving Antifouling Property and Biocompatibility Langmuir 19.

* Corresponding authors a Dipartimento di Ingegneria Industriale, Università di Palermo, Viale delle Scienze, Ed. 6, Palermo, Italy E-mail: [email protected] b Department of Chemical Processes of Engineering, University of Padova, Via F.

Marzolo 9, Padova, Italy. Scaffold design is an important aspect of in vitro model development. In this study, nanoscaffold surface modification, namely UV radiation and genipin cross-linking to immobilize collagen on the surface of electrospun poly (methyl methacrylate) (PMMA) nanofiber sheet was investigated.

This book documents the proceedings of the Fifth International Symposium on this topic, held in Toronto. The book is divided into two parts: Part 1: Surface Modification Techniques; Part 2: Adhesion Improvement to Polymer s ways to modify a host of polymer surfaces for a variety of purposes are covered in this book, with emphasis on.

Improving Properties of Poly(vinylidene fluoride) by Adding Expanded Graphite without Surface Modification via Water‐Assisted Mixing Extrusion. About this book.

This book comprehensively addresses surface modification of natural fibers to make them more effective, cost-efficient, and environmentally friendly. Topics include the elucidation of important aspects surrounding chemical and green approaches for the surface modification of natural fibers, the use of recycled waste, properties.

Surface chemistry is of great importance in micro/nanofluidic devices, especially in the case of miniaturized and integrated systems, owing to the high surface-area-to-volume ratio. Surface properties play a vital role in a number of microfluidic devices through hydrophobic and electrostatic interactions.Several modification schemes were investigated and direct silanization with 3-aminopropyltriethoxysilane was found to be the optimum procedure, resulting in an aminated surface.

Surface coverage of up to % was achieved with retention of the polymeric structural integrity. Modification decreases both contact & interfacial resistances either by improving CNT' metallicity 24 or by softening the interface between matrix and CNT surfaces.

37 Decrease in resistance dramatically augments CNT conductance. Surface modification has be divided into two types: i) Chemical functionalization ii) Physisorption.