Synthesis and thermal decomposition of haloalkoxy-sym-triazines. 11. Synthesis and thermolysis of 2-(2-chloroethoxy)-4-N-methyl-N-methoxyamino-6-dimethylamino-sym-triazine

2-(2-Chloroethoxy)-4-N-methyl-N-methoxyamino-6-dialkylamino-sym-triazines were synthesized. In the case of the dimethylamino derivative it was established that thermolysis gives a mixture of oxooxazolo- and oxoimidazo-sym-triazines, the structures of which were proved by data from the IR, PMR, and mass spectra. A probable scheme for the rearrangement-cyclization reaction is proposed.See [5] for communication 10.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1125–1128, August, 1985.     

Parametric vibrations of an elastoviscous rod

The dynamic stability of an elastoviscous rod is investigated by the method of averaging [3–5]. Nonresonance and resonance cases are studied.     

Mechanical properties of paraffin

The temperature-time dependence of the strength and creep of paraffin has been investigated. This has made it possible to explain the fracture mechanism of plasticized and degraded polymers.     

Sliding of a filament along the surface of a horizontal shelf

We consider the problem of the steady motion of a linear-elastic and envelope surface of a fixed horizontal shelf of a flexible filament of semiinfinite length. We investigate the effect of longitudinal waves reflected from the point of encounter and point of descent of the filament on the parameters of motion of the filament.Yu. Akhunbabaev Tashkent Institute of Textiles and light Industry, Uzbekistan. Translated from Prikladnaya Mekhanika, Vol. 30, No. 2, pp. 90–96, February, 1994.