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101 0 _aeng
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181 0 _ai
182 0 _ab
200 1 _aDependence of the Mechanical Properties of Polycyclopentadiene Radiation-Modified with Accelerated Electrons on the Content of the Gel Fraction
_fM. Yu. Kozhanova, O. V. Litvinenko, P. A. Khakhulin [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 16 tit.]
330 _aThe stress–strain properties of radiation-modified polydicyclopentadiene synthesized by the PolyHIPE technology are studied. The dependence of the tensile strength on the absorbed dose follows a complex pattern. A rise in the dependence in the low-dose region, that is, in the range from 10 to 40 kGy, may be associated with the predominance of radiation crosslinking over degradation. With the increase in the absorbed dose above 40 kGy, the test material generally behaves as predominantly destructuring. Experimentally detected are the signs of tensile strength recovery in the dose range from 20 to 40 kGy to the corresponding values for the unirradiated sample, which indicates the enhanced strength properties of the material. When comparing the values obtained for the material irradiated with a dose of 40 kGy and the unirradiated material, it is clear that the tensile strength decreases by just 5%. It is found that, in the dose range from 0 to 10 kGy, degradation reactions dominate, leading to a low content of the gel fraction. With a further increase in the radiation dose, the intensity of crosslinking of macromolecules becomes higher than the intensity of degradation, which leads to an increase in the proportion of the gel fraction. In the range of 30–50 kGy, the character of this dependence indicates that radiation crosslinking predominates over degradation and it is maximal at a dose of 40 kGy, as follows from a small amount of the dissolved part of the polymer.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tPolymer Science, Series B
463 _tVol. 61, iss. 6
_v[P. 771-775]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aмеханические свойства
610 1 _aизлучения
610 1 _aускоренные электроны
610 1 _aполимеры
701 1 _aKozhanova
_bM. Yu.
_gMariya Yurjevna
701 1 _aLitvinenko
_bO. V.
_gOlga Viktorovna
701 1 _aKhakhulin
_bP. A.
_gPetr Aleksandrovich
701 1 _aLyapkov
_bA. A.
_cChemical Engineer
_cAssociate Professor of Tomsk Polytechnic University, Candidate of chemical sciences
_f1958-
_gAleksey Alekseevich
_2stltpush
_3(RuTPU)RU\TPU\pers\31997
701 1 _aGolubenko
_bI. S.
_gIgor Sergeevich
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа химических и биомедицинских технологий
_c(2017- )
_h8120
_2stltpush
_3(RuTPU)RU\TPU\col\23537
801 2 _aRU
_b63413507
_c20210311
_gRCR
856 4 _uhttps://doi.org/10.1134/S1560090419050087
942 _cCF