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Some Observations in Curing of Thick Thermosetting Laminated Composites

Impact Damage Resistance of Knitted Glass Fiber Fabric Reinforced Polypropylene Composites

Nota del director

Design and Manufacture of Stiffened Composite Panels

Scale Relations for Mold Filling Simulation in Resin Transfer Molding

C A Ε in Integrated Braided Composite

TABLE OF CONTENTS

Porosidad libre en granitos alterados: Comentarios a las normas

In the present paper, the possible relation among some petrophysical properties of five types of granitic materials, whether artificially aged or not, subject to different consolidation and/or water repellent treatments, has been studied. The study indicates a good correlation among imibition values and porosity (free…

Información sobre Congresos y Seminarios. Noticias

A Theoretical and Design Analysis of the Filament-Wound Composite Pressure Vessels

Electrochemical Redox Properties of Polypyrrole/Nafion Composite Film in a Solid Polymer Electrolyte Battery

Nafion ® was introduced into a polypyrrole (PPy) matrix, and the redox performance of the PPy/Nafion electrode was investigated in a poly(ethylene oxide) ( PEO ) ‐ LiClO 4 electrolyte. A rougher interface between polymer cathode and polymer electrolyte is usually needed for an all‐solid battery, however, the PPy/Nafio…

Structure of potassium sulfate at temperatures from 296 K down to 15 K

The crystal structure of potassium sulfate, K 2 SO 4 , was studied at five temperatures from 296 down to 15 K using an off-center four-circle diffractometer. The temperature dependence of lattice constants is well explained by the Gruneisen relation. The crystal structure is confirmed to be orthorhombic, space group P…

Liquid crystal dimers and oligomers: Experiment and theory

Abstract Liquid crystal dimers and trimers exhibit a range of unusual properties which are fascinating in their own right and which also parallel those found for semi‐flexible main‐chain liquid crystal polymers. This close similarity suggests that dimers and oligomers should form good model systems for their polymeric…

Synthesis and properties of cellulose acetoacetates

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and properties of cellulose acetoacetatesK. J. Edgar, K. M. Arnold, W. W. Blount, J. E. Lawniczak, and D. W. LowmanCite this: Macromolecules 1995, 28, 12, 4122–4128Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue…

Tissue Engineering: Biomedical Applications

This paper discusses a novel approach to tissue engineering involving seeding mammalian cells onto biodegradable polymer scaffolds, growing the cells on these scaffolds in vitro, and then implanting the cell-polymer constructs in vivo. Approaches for in vitro cultivation of cells are first discussed. The types of poly…

Determination of the molecular structures of tungstates by Raman spectroscopy

Abstract An empirical correlation is developed for relating the wavenumbers of (WO) stretching modes to WO bond lengths and bond strengths for tungsten oxide reference compounds. A least‐squares exponential fit of crystallographically determined WO bond lengths to the wavenumbers of their Raman stretching modes is…

EMI shielding plastics: A review

Abstract The objective of this article is to review the use of conductive plastics in the shielding of electromagnetic interference (EMI). The theory of EMI shielding and evaluation methods of EMI materials are discussed. Different approaches in achieving high conductivity of plastics are reviewed. Emphasis is placed…

Carbonaceous clusters in irradiated polymers as revealed by UV-Vis spectrometry

Carbonaceous clusters-supposed to be the carriers of electric conductivity-are formed along latent tracks of energetic ions in polymers. The different experimental techniques for cluster determination are summarized. Here we present some new results which have been derived from UV-Vis spectrometric examinations. Espec…

An overview of the basic aspects of polymer adhesion. Part I: Fundamentals

Abstract Adhesion between two substrates is a complex phenomenon which at present is still not well understood. The important existing adhesion models (electrical, diffusion, thermodynamic adsorption, chemical, etc.) are reviewed in order to try to explain their mechanisms. Thermodynamic adsorption is now believed to…

Composition Factors Affecting the Water Vapor Permeability and Tensile Properties of Hydrophilic Films

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComposition Factors Affecting the Water Vapor Permeability and Tensile Properties of Hydrophilic FilmsNicholas Parris, David R. Coffin, Remon F. Joubran, and Helmut PessenCite this: J. Agric. Food Chem. 1995, 43, 6, 1432–1435Publication Date (Print):June 1, 1995Publication H…