Performance of 4,4'-Bis(2,6-di-tert-butylphenol) in stabilization of isoprene rubber and polypropylene

Ахмадуллин, Р. М.; Gatiyatullin, Dinar R.; Васильев, Л А; Akhmadullina, A. G.; Mukmeneva, N. A.; Cherezova, E. N.; Yang, Mingshu

doi:10.1134/s1070427215050171

Cited by 8 publications

(5 citation statements)

References 7 publications

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“…As well, 3,3′,5,5′-tetra-tertbutyldiphenoquinone was developed from hydroquinone by its alkaline oxidative dehydrogenation [12]. A passport, containing various characteristics being formula, molecular weight, NMR spectra, etc.…”

Section: Methodsmentioning

confidence: 99%

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Experimental evaluation of allergenic properties of Bisphenol-5

Ahmadullin¹,

Muhammadiev

Валиуллин

2020

BIO Web Conf.

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The paper presents the results of preclinical studies of the allergenic properties of a new drug bisphenol-5, which has pronounced anti-radical activity. An experimental study of the antioxidant was carried out in doses of 2, 5, 20 mg/kg in guinea pigs and rabbits. It was shown that bisphenol-5 is not able to cause a general anaphylaxis reaction (anaphylactic shock). By the method of skin applications, the absence of allergenic effects of the drug in animals was found. During the formulation of conjunctival tests in experimental and control animals, signs of hypersensitivity, both immediate and delayed, were not observed with respect to the test drug. Changes in body temperature, pulse rate, and the number of respiratory movements as a result of clinical studies of the state of the animal organism after applying bisphenol-5 were also not recorded. Thus, the drug Besphenol-5 in the studied doses and under the selected experimental conditions does not have a negative effect on the body of laboratory animals and does not have allergenic properties.

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Section: Methodsmentioning

confidence: 99%

“…In this regard, the new substance is 4.4'-bis (2,6-di-tretbutylphenol). It is a lipophilic organic substance that is a synthetic spatially substituted antioxidant of the phenol class [12]. Unlike its analogues 2,6-ditretbutyl and 4nonylphenol, it has a more pronounced antioxidant activity and high efficiency.…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of allergenic properties of Bisphenol-5

Ahmadullin¹,

Muhammadiev

Валиуллин

2020

BIO Web Conf.

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“…As it is known, the introduction of various additives such as plasticizers, stabilizers, antipyrenes, etc. into the composition materials is one of the main methods of adding specific properties thereto and improving physicalmechanical and technological parameters of materials [1][2][3]. Most synthetic polymers are noted for sufficient stability in temperature, light, atmospheric action, etc.…”

Section: Introductıonmentioning

confidence: 99%

Epoxy-Containing Adducts of Rosin Aslight- And Thermostabilizers for PVC

Pirguliyeva¹,

Guliyev²

2020

Chemical Problems

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The thermo- and light-stabilizing activity of glycidyloxycarbonyl- and glycidyloxymethylsubstituted derivatives of the sulphur-containing rosin in the compositions on the basis of plasticized polyvinyl chloride were studied. It found that the proposed epoxy-derivative adducts of rosin possess thermal stability allowing them to withstand the processing temperature of polyvinyl chloride compositions. The developments showed that the proposed stabilizers can protect the polymer matrix against light radiation. It revealed that the film samples prepared with the help of the proposed stabilizers showed the high thermal stability, impact resistance, good frost resistance and mechanical strength.

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“…Phenolic antioxidants are widely used to stabilise rubbers, and among these we should single out bisphenol antioxidants, which are noted for high efficiency. One such antioxidant is 4,4′-bis(2,6-di- tert -butylphenol) (Bisphenol-5) [3, 4]. In order to broaden the prospects of using Bisphenol-5 at the Krasnoyarsk Synthetic Rubber Factory, the stabilising efficiency of this antioxidant in nitrile butadiene rubber in comparison with the industrial antioxidant Vulcanox BKF has been studied.…”

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confidence: 99%

An investigation of the efficiency of heat stabilisers Bisphenol-5 and Vulcanox BKF in the production of nitrile butadiene rubber*

Ахмадуллин¹,

Karimov

Akhmetshin

et al. 2018

International Polymer Science and Technology

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The properties of heat stabilisers Bisphenol-5 [4,4′-bis(2,6-di- tert-butylphenol)] and Vulcanox BKF [2,2-methylene-bis(4-methyl-6- tert-butylphenol)] and their efficiency in stabilising nitrile butadiene rubbers (SKN-1865 and SKN-2665) were investigated. The efficiency of the antioxidants was assessed from the thermooxidative ageing of the rubbers at 150°C over the course of 1 and 3 h. The Mooney viscosity and solubility of specimens with Bisphenol-5 change less during oxidation than those of specimens with Vulcanox BKF. The good stability of the Bisphenol-5 dispersion after additional treatment in a ball mill for 12 h was shown. Stability was assessed from the sedimentation rate of antioxidant particles and from the ratio of sediment to dispersion volume. The vulcanisation time and physicomechanical properties of compounds based on rubbers containing Bisphenol-5 and Vulcanox BKF were compared. The recommended content of Bisphenol-5 in SKN-1865 rubber is 0.23 parts, and in SKN-2665 rubber 0.3 parts. Bisphenol 5 can be recommended as a replacement for imported Vulcanox BKF for the stabilisation of nitrile butadiene rubbers.

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Performance of 4,4'-Bis(2,6-di-tert-butylphenol) in stabilization of isoprene rubber and polypropylene

Cited by 8 publications

References 7 publications

Experimental evaluation of allergenic properties of Bisphenol-5

Experimental evaluation of allergenic properties of Bisphenol-5

Epoxy-Containing Adducts of Rosin Aslight- And Thermostabilizers for PVC

An investigation of the efficiency of heat stabilisers Bisphenol-5 and Vulcanox BKF in the production of nitrile butadiene rubber*

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