Dielectric relaxation of the alternating terpolymers of ethylene, propylene, and carbon monoxide

Privalko, V. P.; Pissis, P.; Polizos, Georgios; Korskanov, V. V.; Привалко, Е. Г.; Dolgoshey, V. I.; Kramarenko, V. Yu.; Hühn, W.; Hollmann, Frank; Rieger, Bernhard

doi:10.1081/mb-120002349

Cited by 10 publications

(3 citation statements)

References 28 publications

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“…Moreover, hysteresis effects were found for the viscoelastic characteristics of the terpolymers in the melt on heating the specimens to 227 8C with subsequent cooling to 127 8C. 268 This set of data indicates that long-term storage of the terpolymers at room temperature promotes the formation of a network of CH 2 =CH 2 /CO nanocrystallines with runs through the continuous phase of the noncrystalline MeCH = CH 2 /CO blocks. The low values of the shape parameter from the Kolmogorov ± Avrami equation in combination with exceptionally long half-periods of nanocrystallisation 269 are consistent with the views stating that nanocrystallites are formed through lateral aggregation of the CH 2 =CH 2 /CO blocks, which is retarded by the continuous MeCH=CH 2 /CO phase.…”

Section: Mechanical and Other Properties Of Copolyketonesmentioning

confidence: 87%

Polyketones as alternating copolymers of carbon monoxide

Белов¹,

Новикова²

2004

Russ. Chem. Rev.

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Section: Mechanical and Other Properties Of Copolyketonesmentioning

confidence: 87%

Polyketones as alternating copolymers of carbon monoxide

Белов¹,

Новикова²

2004

Russ. Chem. Rev.

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“…Recently, these methods are increasingly used to study the electrical properties of various composite materials [ 1 – 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…The position and intensity of the peaks on the curves characterize the molecular mobility in the composites. TSDC technique is used to study the molecular behavior of a wide class of composites based on both low- and high-molecular compounds [ 1 – 5 , 10 – 14 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental device for study of the thermal stimulated direct current in the composite materials

Korskanov

Fesenko

Tsebrienko

et al. 2022

J Therm Anal Calorim

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Presents the device for analysis the thermally stimulated electrical conductivity of composites in the wide temperature range. The main advantage of the module in relation to those described earlier is that it allows experiments both in the mode of measuring the current of thermally stimulated depolarization (TSDC) at low temperatures, and in the mode of measuring the thermally stimulated conductivity current (TSCC) up to very high temperatures. Using PMMA/PVDF mixtures as an example, it is shown that the TSDC method can be used to temperature transitions analysis in the many composite materials at low temperatures. It was also shown on the example of the two-component epoxy networks that the described module makes it possible to study the thermal transitions in the composites materials using the TSCC mode to the high temperatures.

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Synthesis and Properties of Poly(ketone‐co‐alcohol) Materials: Shape Memory Thermoplastic Elastomers by Control of the Glass Transition Process

Pérez-Foullerat

Hild

Mücke

et al. 2004

Macro Chemistry & Physics

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Summary: The well‐controlled reduction of polyketone carbonyl functional group was performed without chain degradation by using NaBH4 in tetrahydrofuran (THF)/MeOH solvent mixtures. Three different families of flexible polyketones (alternating propene/CO “PCO”, hex‐1‐ene/CO “HxCO” copolymers, and “pulse feed” alternating olefin/CO terpolymers from ethene and propene “EPCO”) were investigated to achieve either a partial reduction, leading to poly(ketone‐co‐alcohol)s of corresponding composition, or a complete conversion into polyalcohols. Increasing the ratio of [OH]/[CO] functions allows continuous change of the Tg of the resulting polymers from below room temperature to about 75 °C. Properties of the synthesized materials, like thermal decomposition, glass transition temperature, surface tension, and mechanical performance, are described depending on the degree of reduction. Thermoplastic elastomers with an interesting “shape memory” effect result from the partially reduced, elastic EPCO terpolymers.Stress‐strain curves for ethylene‐propylene/CO copolymers reduced to different extents.imageStress‐strain curves for ethylene‐propylene/CO copolymers reduced to different extents.

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Dielectric relaxation of the alternating terpolymers of ethylene, propylene, and carbon monoxide

Cited by 10 publications

References 28 publications

Polyketones as alternating copolymers of carbon monoxide

Polyketones as alternating copolymers of carbon monoxide

Experimental device for study of the thermal stimulated direct current in the composite materials

Synthesis and Properties of Poly(ketone‐co‐alcohol) Materials: Shape Memory Thermoplastic Elastomers by Control of the Glass Transition Process

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