On response functions in linear thermoelastic models of shape memory polymers

This paper is concerned with the broad class of Liner Thermoelastic (LTE) models for Shape Memory Polymers (SMPs) which unifies numerous constitutive theories proposed in the literature for this kind of smart material. It is shown that the response functions for the general model of this class may be determined directly from experimental data measured in standard thermomechanical cyclic tests. (© 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)     

Kinetics of Thermal Decomposition of Plumbo-jarosite

An investigation was carried out on the kinetics of thermal decomposition of plumbo-jarosite. The kinetic models of dissociation of the compounds in the ore were identified. The results of the kinetic studies and the mechanism of the process are discussed. The thermal decomposition of plumbo-jarosite occurs in three stages: the first up to 763, the second up to 1023 and the third up to 1223 K, the corresponding activation energy values being 62.2, 60.3 and 98.0 kJ mol^–1 , respectively. This revised version was published online in July 2006 with corrections to the Cover Date.     

Numeric Characteristics for Asymptotic Stability of Solutions to Linear Difference Equations with Periodic Coefficients

Siberian Mathematical Journal -     

Ball mill–assisted synthesis of carbon-free SnSe nanoparticles for sodium-ion battery anodes

Journal of Solid State Electrochemistry - Tin selenide (SnSe) is a potential candidate for sodium-ion battery anodes owing to its high theoretical capacity, environmental benignity, and abundant...     

The linear symmetries of Hill’s lunar problem

Archiv der Mathematik - A symmetry of a Hamiltonian system is a symplectic or anti-symplectic involution which leaves the Hamiltonian invariant. For the planar and spatial Hill lunar problem, four...     

One‐Component Bimolecular Photoinitiating Systems, 2

The compounds 2‐thioxanthone‐thioacetic acid and 2‐(carboxymethoxy)thioxanthone, bimolecular photoinitiators for free radical polymerization, are synthesized and characterized. Their capability to act as initiators for the polymerization of methyl methacrylate was examined. The postulated mechanism is based on the intermolecular electron‐transfer reaction of the excited photoinitiator with the sulfur or oxygen atom of the ground state of the respective photoinitiator followed by decarboxylation. The resulting alkyl radicals initiate the polymerization.

Structures of the photoinitiators.