Manufacture of Films Displaying Liquid-Crystalline Structure

Gul, V. E.; Sdobnikova, O. A.; Peshehonova, A. L.; Samoilova, L. G.; Khanchech, O. A.; Суворова, А. И.

doi:10.1080/00914039308048507

Cited by 3 publications

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References 3 publications

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“…This is typical for spherulite containing polymers elongation mechanisms: rotation and mutual movement of fibrils made of spherulites, without change of their fine molecular structure [2]. By transition from wholly isotropic films to ones containing perfect spherulites, there are intermediate shapes of spherulite organization which are characterized by similar sizes yet different states of inner ordering.…”

Section: Resultsmentioning

confidence: 97%

“…Thus, changes spherulite size and their inner structure occur separately (based on the zinc sulfate concentration scale) which gives the opportunity to evaluate the input of each of these factors into the physical properties of the samples [2]. The test results are given in Table I.…”

Section: Anisotropy In Cellulose Hydratementioning

confidence: 99%

“…That is why the interest in studying the optically anisotropic supermolecular structures formation from rayon is justified by the expectation of using the results in the industrial applications. Knowing the regularities of structure formation and the relationship between the morphology features and physical properties of films will allow to predict certain properties of rayon films [2]. Until now, there is no structural concept relating formation conditions, super-molecular structure and physical properties of cellulose hydrate films.…”

Section: Introductionmentioning

confidence: 99%

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Control of the Anisotropic Structure of Cellulose Hydrate Films by Variations of Coagulation Variables

Khanchich

Serkov

Morozov

et al. 2001

International Journal of Polymeric Materials

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The evolution of the structures, that developed in cellulose hydrate films from a rayon after coagulation in the precipitating bath from organic solvent, water and sulfuric acid in presence of inorganic salt has been investigated. The specific features of structure formation at coagulation and cellulose hydrate film extension have been found. It was shown that there is a high diversity of supermolecular structures, whose morphology depends on the precipitation conditions and preliminary orientation. The films structure characteristics correspond to its strength properties. An increase in salt concentration resulted in a films with a more homogeneous, tensile strength structures and small sizes of spherulites. The films of high resistance is formed, in a precipitation bath of organic solvent, because of the realization of the liquid crystalline phase in the coagulation process.

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Section: Resultsmentioning

confidence: 97%

Section: Anisotropy In Cellulose Hydratementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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