Effect of the thermodynamic quality of solvent on the viscosity properties of concentrated solutions of poly(4,4′-oxydiphenylene)pyromellitamic acid

Byel'nikevich, N.G.; Sklizkova, V. P.; Kudryavtsev, V. V.; Koton, M.M.; Frenkel, S.Ya.; Gerashchenko, Z.V.; Dontsova, E. P.; Blinov, V.F.; Zimin, Yu.V.

doi:10.1016/0032-3950(88)90343-7

Polymer Science U.S.S.R.

1988

DOI: 10.1016/0032-3950(88)90343-7

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Effect of the thermodynamic quality of solvent on the viscosity properties of concentrated solutions of poly(4,4′-oxydiphenylene)pyromellitamic acid

N.G. Byel'nikevich

V. P. Sklizkova

V. V. Kudryavtsev

et al.

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The effect of liquid crystalline graphene oxide compared with non-liquid crystalline graphene oxide on the rheological properties of polyacrylonitrile solution

Liu

2021

High Temperature Materials and Processes

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In this article, polyacrylonitrile (PAN) and two kinds of graphene oxide (GO) with different structural properties are blended in dimethyl sulfoxide (DMSO) according to a certain ratio to prepare stable-spinning solution. One kind of GO is purchased, and we call it GO1. The other is a kind of self-made GO with liquid crystal property in solution, which is called GO2. The effects of two kinds of GO on the rheological properties of PAN/GO spinning solution (15 wt%) were studied. The results show that the viscous activation energy of the liquid crystal GO2/PAN blend solution is significantly higher than that of the nonliquid crystal GO1/PAN blend solution. Moreover, the liquid crystal system is more obviously affected by temperature. The structural viscosity index of the liquid crystalline GO2/PAN solution is obviously lower than that of the GO1/PAN solution. It indicates that the existence of liquid crystallinity is beneficial to the spinning of the solution. In the low-frequency region, the addition of GO1 makes the solution more elastic, and the addition of GO2 makes the solution more viscous.

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The effect of liquid crystalline graphene oxide compared with non-liquid crystalline graphene oxide on the rheological properties of polyacrylonitrile solution

Liu

2021

High Temperature Materials and Processes

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Effect of the thermodynamic quality of solvent on the viscosity properties of concentrated solutions of poly(4,4′-oxydiphenylene)pyromellitamic acid

Cited by 1 publication

References 5 publications

The effect of liquid crystalline graphene oxide compared with non-liquid crystalline graphene oxide on the rheological properties of polyacrylonitrile solution

The effect of liquid crystalline graphene oxide compared with non-liquid crystalline graphene oxide on the rheological properties of polyacrylonitrile solution

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