Polymeric materials based on oligodieneurethane-epoxy oligomers

Fedoseev, M. S.; Tereshatov, V. V.; Derzhavinskaya, L. F.

doi:10.1134/s1070427210080070

Cited by 8 publications

(4 citation statements)

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“…With this connection, we had set optimal temperature regimes for these reactions. It was expedient to do this, while also keeping in mind that compounds for electronic and radioengineering devices, as well as polymeric and sealing materials for various purposes, were designed on the basis of the given polymers [28][29][30]. Distinction in reactive capability of catalysts exerts appreciable influence on rheological properties of reaction mixes.…”

Section: Resultsmentioning

confidence: 99%

1-Butyl-3-methylimidazolium Salts as New Catalysts to Produce Epoxy-anhydride Polymers with Improved Properties

Fedoseev

Груздев

Derzhavinskaya

2014

International Journal of Polymer Science

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We report the curing process of epoxy oligomers by using isomethyltetrahydrophthalic anhydride catalyzed with 1-butyl-3-methylimidazolium salts. Catalytic action has been ascertained to be dependent on the nature of anion. Salts with(Br-)and(PO4-)anions appeared to be most active. Formation of salt adducts with epoxy resin and anhydride is shown. Polymers having higher values of strength and glass transition temperature—as compared with similar epoxy systems cured in the presence of tertiary amines as catalysts—are prepared.

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Section: Resultsmentioning

confidence: 99%

1-Butyl-3-methylimidazolium Salts as New Catalysts to Produce Epoxy-anhydride Polymers with Improved Properties

Fedoseev

Груздев

Derzhavinskaya

2014

International Journal of Polymer Science

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“…In the second stage, a reaction occurs between the obtained oligodiisocyanate and the epoxy alcohol [12][13][14][15]. Amines, dicarboxylic acid anhydrides, and compounds with carboxyl groups are used as hardeners for the obtained EUOs [16]. Curing of this type of material is provided, as a rule, at a temperature of 70°C-90°C.…”

Section: Introductionmentioning

confidence: 99%

“…The use of polymer materials in the Arctic requires a decrease in the temperature limit for their operation down to -70°C. Similar materials with satisfactory frost resistance were developed on the basis of oligodieneurethane epoxides, in which the glass transition temperature reaches -76°C [16]. However, a significant drawback of such materials is low strength, as it may not be higher than 5 MPa.…”

Section: Introductionmentioning

confidence: 99%

Frost-Resistant Epoxy-Urethane Binders Containing Diglycidyl Urethane

Стрельников

Senichev

Slobodinyuk

et al. 2019

International Journal of Polymer Science

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“…This class includes polyurethanes, [1][2][3] poly(urethaneureas), 4,5 and oligourethane epoxide-based polymers. [6][7][8] A wide range of components used in the synthesis (oligodiols, diisocyanates, low molecular mass chain extenders, cross-linking agents) of these polymers can give polyurethanes and poly(urethaneureas) with various combined properties. [9][10][11][12][13][14] Plasticizers are introduced into polyurethanes or poly(urethaneureas) to improve their elasticity at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

The effect of plasticization on the properties of poly(urethaneureas) based on oligoether diols, 2,4-toluenediisocyanate, and aromatic diamines

Tereshatov

Макарова

Senichev

et al. 2018

Journal of Elastomers & Plastics

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Segmented poly(urethaneureas) (SPUUs) modified with low glass transition temperature chemically inert liquids are of interest due to their controllable properties and potential applications under various environmental conditions. Investigation into the influence of plasticizers on the properties of SPUUs based on oligotetramethyleneoxide diol (polytetramethyleneoxide), oligopropyleneoxide diol (polypropyleneoxide), 2,4toluenediisocyanate, Ethacure-300, and methylene-bis-o-chloroaniline was conducted. Partial crystallization of polytetramethyleneoxide segments was identified during cooling of some SPUU samples plasticized by di-(2-ethylhexyl)sebacate (DEHS) and tributyl phosphate. Polypropyleneoxide segments did not crystallize under the same conditions. A low crystallization temperature for the amorphous component of the polymer matrix in SPUU (À100 C to 103 C) was attained at a molecular mass (M n) of soft segments equal to 2000 g mol À1 and a DEHS concentration equal to 40-45%. A relationship between the mechanical properties of plasticized SPUU, microphase segregation, and dilution of the polymer matrix was found. For the first time, the effect of dilution with plasticizer on the strength of elastomers was considered. The plasticization effect on the mechanical properties of SPUU was investigated in the temperature diapason from 50 C to À70 C. The results of these investigations can be used in various technologies including the design of SPUUs with high elastic properties at temperatures as low as À70 C, typical of extreme conditions of the Arctic climate.

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Polymeric materials based on oligodieneurethane-epoxy oligomers

Cited by 8 publications

References 0 publications

1-Butyl-3-methylimidazolium Salts as New Catalysts to Produce Epoxy-anhydride Polymers with Improved Properties

1-Butyl-3-methylimidazolium Salts as New Catalysts to Produce Epoxy-anhydride Polymers with Improved Properties

Frost-Resistant Epoxy-Urethane Binders Containing Diglycidyl Urethane

The effect of plasticization on the properties of poly(urethaneureas) based on oligoether diols, 2,4-toluenediisocyanate, and aromatic diamines

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