Effect of cis-trans-isomerism on the flexibility of the molecular chains of polybutadiene and polyisoprene

Poddubnyi, I.Ya.; Erenburg, Ye.G.; Yeremina, M.A.

doi:10.1016/0032-3950(68)90023-3

Cited by 19 publications

(2 citation statements)

References 9 publications

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“…This implies that blending with BR reduces the crack propagation resistance of NR, especially in carbon black filled compounds. This may be due to the reinforcing effect of the filler, which is more prominent in BR compared to that in NR [17][18][19]. The stress-strain behavior for each sample can be used to determine their experimental energy release rate or tearing energy.…”

Section: Fracture Experiments Under Quasi-static Loadingmentioning

confidence: 99%

Understanding fracture of a carbon black filled rubber compound using material force theory

Poomuthu

Stoček

Chattopadhyay

et al. 2020

Theoretical and Applied Fracture Mechanics

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Section: Fracture Experiments Under Quasi-static Loadingmentioning

confidence: 99%

Understanding fracture of a carbon black filled rubber compound using material force theory

Poomuthu

Stoček

Chattopadhyay

et al. 2020

Theoretical and Applied Fracture Mechanics

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“…To get numerical values of statistical weight to be used for the present calculations, let us refer to some experimental results 7 -10 25 ), respectively. The value of a' =0.536 was assigned for trans-I, 4-polyisoprene.…”

Section: Input Numerical Valuesmentioning

confidence: 99%

Unperturbed Chain Dimensions of Stereoirregular 1, 4-Polybutadiene and 1, 4-Polyisoprene

Tanaka

Nakajima

1972

Polym J

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ABSTRACT:The characteristic ratios of stereoirregular 1, 4-polybutadiene and I, 4-polyisoprene chains have been theoretically investigated by the Monte Carlo procedure in accordance with the model proposed by Mark. It was pointed out that the presence of discrete cis units in trans-rich chains significantly reduces the characteristic ratio while that of discrete trans units in cis-rich chains has little effect on the characteristic ratio.KEY WORDS Characteristic Ratio / Chain Statistics / l, 4-Polybutadiene / 1, 4-Polyisoprene / Stereoirregular Polymer / Monte Carlo Chain/ In recent years a great deal of attention has been paid to the effect of stereochemical configuration on the conformational statistical mechanical properties of polymer chains. The dependence of characteristic ratio

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Temperature and microstructure dependence of the Rheo‐optical properties of polybutadienes

Kalfoglou

Williams

1970

J of Applied Polymer Sci

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synopsisThe present investigation covers the isothermal stress4rain-birefringence behavior of various polybutadienes between -3OOC and 110°C. Birefringence measurements: were also made under constant stress as a function of temperature in the low temperature region between -3OOC and -12OOC. The polybutadienes studied were two high cis-1,4 (prepared by different catalysts), a linear medium cis, and an emulsion polybutadiene. At temperatures at which the photoelasticity theory could be applied, the segmental polarizability anisotropy, its temperature dependence, and other parameters associated with an elastic polymeric network were determined. The influence of the degree of crosslinking was examined. At the low temperatures, microstructure was shown to have a pronounced effect on the photoelastic properties, the crystallization phenomena, and the glass-rubber transitions.

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Effect of cis-trans-isomerism on the flexibility of the molecular chains of polybutadiene and polyisoprene

Cited by 19 publications

References 9 publications

Understanding fracture of a carbon black filled rubber compound using material force theory

Understanding fracture of a carbon black filled rubber compound using material force theory

Unperturbed Chain Dimensions of Stereoirregular 1, 4-Polybutadiene and 1, 4-Polyisoprene

Temperature and microstructure dependence of the Rheo‐optical properties of polybutadienes

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