Materials Literature
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The protocols in this chapter concern postembedding immunolabeling for transmission electron microscopy; other schedules, such as pre-embedding methods, frozen tissue processes, and procedures for scanning electron microscopy, can be found elsewhere (1). In principle, immunolabeling at the electron microscope (EM) lev…
The compatibilization mechanism of some compatibilizers for blends of polyolefins with a liquid crystalline polymer (LCP) was studied. Polyethylene (PE) and polypropylene (PP) were blended with a semirigid LCP (SBH) in a batch mixer, either with and without compatibilizers. The latter were two commercially available s…
The effective Born charges and ionic displacements in the ferroelectric phase have been used for estimations of relative contributions of different ion sublattices into the value of the spontaneous polarization of ABO3 ferroelectric oxides with perovskite-type structure. The principal difference of PbTiO3 from other p…
The structural modification and phase transition in rare earth (Gd3+ and Ce3+)-doped Pb0.90La0.15TiO3 films, prepared by the sol–gel technique on Pt substrates, were studied utilizing x-ray diffraction and micro-Raman scattering techniques. Lattice parameters calculated from x-ray data indicate an increase in lattice…
Incorporation of SRF and ISAF grades of carbon black and precipitated silica improves the physical properties of the zinc stearate plasticized ionomer, namely, the zinc salt of sulfonated maleated EPDM rubber, which behaves as an ionic thermoplastic elastomer. The reinforcing ability of the fillers follows the order S…
Multi-channel confocal micro-Raman spectroscopy was used to characterize silica-supported PdCl2 powder (PdCl2/SiO2) and Pd–B amorphous alloy catalyst (Pd–B/SiO2) which is formed by reducing PdCl2/SiO2 with KBH4. The results show that PdCl2/SiO2 gives mainly a complicated broad ν(PdCl) bands in the 150–650 cm−1 region…
Resistance to antibiotics is increased in all hospitals, and bacterial pathogens that contaminate burns and wounds are widespread. Their resistance to well-known antibiotics is recorded, and every day resistant isolates are counted and studied. The present study aimed to prepare new polymers with antimicrobial activit…
Binary blends of the sulfonated poly(ether ether ketone) (SPEEK)–poly(ether imide) (PEI) and SPEEK–polycarbonate (PC), and ternary blends of the SPEEK–PEI–PC, were investigated by differential scanning calorimetry. SPEEK was obtained by sulfonation of poly(ether ether ketone) using 95% sulfuric acid. From the thermal…
The dynamic mechanical properties of poly(n-butyl methacrylate) (PBMA) latex films postadded with alkali-soluble resin (ASR) have been studied and compared with those of latex films prepared by emulsion polymerization in the presence of ASR (ASR-fortified latex). The miscibility between PBMA and ASR, poly(styrene/alph…
Polycarbonate (PC) blended with a polymer-modifier polycarbonate–polydimethylsiloxane (PC–PDMS) of polyblock structure having equal molar ratios of soft (PDMS) and hard (PC) blocks have been investigated. The kinetics of adhesional interaction in blends and the analysis of interphase interaction conducted by using the…
The effectiveness of a set of thermally resistant polymers was evaluated for aircraft applications using the cone calorimeter (ASTM E1354/ISO 5660) under heat fluxes simulating real scale fires. This study included eight developmental and commercial thermally resistant polymers available in the literature and/or marke…
Styrene–butadiene rubber (SBR) was treated with decabromobiphenyl oxide (DBBO) and/or aluminum hydroxide [Al(OH)3] as a flame retardant. The flammability of the resulting system was determined by the limiting oxygen index method. The effect of the added flame retardants on the maximum torque (MH), curing rate, and ten…
Selected examples of the Canadian contribution to the development of understanding of the behavior of hydrogen in zirconium alloys are reviewed. To solve the technical problems faced by the nuclear industry, it was necessary to have values for the solubility and diffusivity of hydrogen in the alloys, the diffusivity n…
A number of structurally different block copolymer polyhydroxypolyamides (PHPAs), produced by condensation polymerization of activated aldarates with 1o diamines, were evaluated for their water and methanol solubility and film-forming and adhesive properties. The polymers are composed of a single aldaric acid and a si…
The maleate cis-trans isomerase gene (maiA) from Serratia marcescens IFO3736 was cloned and sequenced. Serratia MaiA has 62.4% amino acid identity with Alcaligenes faecalis IFO13111 MaiA and 64.9% with Bacillus stearothermophilus MI-102 MaiA. All known ten amino acid sequences of MaiA had significant conserved regions…
Abstract Of the principal classes of engineering materials, ceramics are in many ways the most interesting and challenging. Many properties, or combination, of properties, not achievable with other classes of materials give ceramics enormous technical potential. The main obstacles that prevent the wider use of ceramic…
Nanometre-sized poly(vinylidene fluoride) (PVDF) particle domains in a confined space were obtained by blending PVDF with excess poly(methyl methacrylate) (PMMA). When these particles were small enough they showed β-form structure, which was different from the structure of bigger particles or PVDF bulk. However, the β…
Liposomes or lipid nanoparticles are amphiphilic vesicles that allow the inclusion of substances of interest of any kind, both lipophilic and hydrophilic. This has put these transport systems in the spotlight for some time because it has been shown that they can function as carriers to release controlled and targeted…
The changes in pressure-composition isotherms, structural and magnetic properties upon cyclic hydrogen absorption-desorption have been investigated for LaNi5 and LaNi4.7Al0.3 in order to identify the origin of their performance degradation. The hydrogen storage capacity of LaNi5 was observed to degrade by 35% after cy…
(2000). Welding of stainless steels. Duplex and superduplex steels. Welding International: Vol. 14, No. 1, pp. 5-11.