Materials Literature
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The behaviour under different accelerated aging tests (freeze/thaw and crystallization cycles) of a new lime mortar with biocide properties destinated to monumental repair has been studied. New mortars (which have the biocide impregnated in a clay called sepiolite) have a similar behaviour to lime mortars used as a re…
The scarce references which exist in the bibliography on this subject and their vagueness on the factors which have an influence on the reduction of the strength of aluminous cement concrete due to the effect of alkalinity, have not yet allowed the limits to be clearly seen which could give rise to a situation of risk…
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…
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…
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…
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…
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…
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…
Abstract An empirical correlation is developed for relating the wavenumbers of (WO) stretching modes to WO bond lengths and bond strengths for tungsten oxide reference compounds. A least‐squares exponential fit of crystallographically determined WO bond lengths to the wavenumbers of their Raman stretching modes is…
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…