Showing papers in "European Polymer Journal in 1986"

TL;DR: In this paper, the conductances of LiClO 4 and LiCF 3 SO 3 solutions in a low mol. wt polyether have been measured as a function of salt concentration.

TL;DR: In this paper, the synthesis and properties for a series of new liquid crystal side-chain polymethylsiloxanes with the same mesogenic rigid core but different substitutents or flexible spacers are described.

TL;DR: In this article, simultaneous thermal analyses were performed on samples of five typical compounds based on poly(vinyl chloride) in three main breakdown stages, the first accounting for over 60% of the pure resins and for over 50 % of the other compounds.

TL;DR: In this paper, the effects of crosslink density and crosslink type on the tensile and tear strengths of gum NR, SBR and EPDM vulcanizates have been studied.

TL;DR: In this paper, the authors have measured the velocity, density and absolute viscosities of ISRO polyol, a prominent castor oil based solid propellant binder used in the Indian Space Research Organization.

TL;DR: In this paper, the authors examined the spectroscopic properties of 9 oil soluble hydroxy and methoxy thioxanthone derivatives and the data compared to their photopolymerization efficiency and flash photolysis behaviour in solution.

TL;DR: In this article, the micellar properties of the surfactant and also the polymer conformation in a mixture of sodium dodecyl sulphate or dodechylbenzene sulphonate and partially hydrolysed polyacrylamide were investigated.

TL;DR: The photochemistry of eight aromatic carbonyl based photopolymerisation initiators is examined and compared using u.v. absorption, phosphorescence, micro-second flash photolysis, steady-state photolyisation and photopolymersisation rates for n-butyl methacrylate as discussed by the authors.

TL;DR: In the presence of a tertiary amine, both ketyl radical and radical anion (at longer wavelengths) are observed, the latter being formed via abstraction of an electron from the amine as discussed by the authors.

TL;DR: In this article, copolymers of the nematogenic monomer, p -(ϵ-acryloyloxycaproyloxy)- p ′-methoxyphenylbenzoate, with various cholesterol-containing monomers were synthesized.

TL;DR: In this article, the authors showed that the initial rate of oxidation increases with increasing carboxylic (A) and basic (B) groups, and that the number of chains and the concentration of B groups in oxidized polymers are sensitive to the concentration and ratio A/B.

TL;DR: Reverse micelle photopolymerization of acrylamide has been investigated in the presence of ionic benzophenones and the results are discussed in terms of the processes involved in the excited states and observed through time resolved laser spectroscopy.

TL;DR: In this paper, the same authors showed that copolymers with 4-12 conjugated double-bonded polyenes with ozonolysis increased with increasing amount of acetylene in the feed, indicating that acetylene is a retarder in polymerization.

TL;DR: In this paper, the kinetics of the epoxidation of natural rubber latex stabilized by hexadecyltrimethyl-ammonium chloride were studied at 3, 15 and 25°C by the sampling technique.

TL;DR: A brief survey of application of NMR; both 1H and 14C, in the analysis of monomer sequence, copolymer composition, polymer microstructure, end-group and relaxation phenomenon is also made.

TL;DR: In this paper, the influence of the structure of LLDPE on the properties of these blends was evaluated and it was shown that LLDPEs of large MFI seem the more interesting for both rheological and mechanical properties.

TL;DR: The photopolymerization and photochemistry of seven novel water soluble methyl substituted 3-(9-oxo-9H-thioxanthene-2-yloxy)-N, N, N, N -trimethyl-1-propanaminium salts are examined in water and 2propanol using absorption, luminescence and conventional microsecond flash photolysis techniques.

TL;DR: In this article, a polyamideimide was synthesized by reacting rosin maleic anhydride Diels-Alder adduct with 4,4′-diaminodiphenylmethane.

TL;DR: The effect of tetramethylethylenediamine on 2 one-unit butadiene anionic polymerization models has been studied in cyclopentane.

TL;DR: In this paper, the authors measured dynamic NMR and mechanical properties TSL, T1p(C) at 60 kHz, Tg at ≈ 1 Hz and its half width, log decrement (Δmax) and compression modulus (E) were measured for poly[tetra(ethylene glycol)dimethacrylate] (PTEGDMA) at different extents of cure.

TL;DR: In this paper, the packing energy of isotactic poly-1-butene has been evaluated by packing energy calculations using the values of the axes of the unit cells obtained by X-ray measurements.

TL;DR: In this article, the effects of the concentrations and ratio of reacting components and of temperature on the kinetics of reaction of N-propionyllactam (I) with potassium salt of lactam (KL) were studied for derivatives of ϵ-caprolactam, 8-octanelactam and 12-dodecanellactam.

TL;DR: In this paper, the authors used NMR spectroscopy to obtain information on the structures of cured drying oils used in alkyd paint manufacture, and found that the behaviours of linolenate and linoleate groups are quite different.

TL;DR: In this article, a comparison of the thermal and photodegradation behaviors of the copolymers has been made, and it has been shown that the built-in double bonds show an effect on the reactivity of the adjacent allylic chlorine depending on the electron-withdrawing or repelling nature of the substituent.

TL;DR: In this article, the Tobolsky theory of dead-end radical polymerization was applied to the case of 1-vinylimidazole and benzoyl peroxide.

TL;DR: In this paper, the authors developed a method of preparation of plasticized PVC sample with very low matter transfers, in which after soaking the sample in a liquid for a definite short time, the sample is extracted and the liquid is evaporated.

TL;DR: In this paper, a separation par chromatographie en phase liquide (HPLC), suivie d'une etude par resonance magnetique nucleaire (RMN) du proton and du carbone 13 ont permis de determiner la structure and l'ordre d'elution des constituants essentiels comportant un minimum de trois noyaux phenoliques lies entre eux par des groupes methylene de deux resols phenol-formaldehyde.

TL;DR: In this paper, a pouvoir plastifiant des fonctions ester d'ethyle-2-hexyle greffees evalue par leur aptitude a diminuer la temperature de transition vitreuse est inferieur a celui observe lorsque les memes fonsctions sont a l'etat libre dans la matrice polymere.

TL;DR: In this paper, the viscoelastic behavior of polycarbonate with tetramethylpolycarbonate (MPC) blends has been correlated with the blend composition and compatibility, and the free volume contraction, found to explain the variations of glass transition temperature and viscosity with concentration, suggests strong intermolecular interaction in the compatible range.