| 摘要 |
FIELD: polymer fibers production. SUBSTANCE: fibers are found to be formed by simple way from solution of polyketone polymer via formation of thermally reversible gel from polyketone solution and solvent for polymer having melting point below 373 K, dissolving temperature of polymer exceeding 443 K. Thermally reversible gel is formed on cooling solution. Because of specific properties of solvent in combination with polymer concentration, and its intrinsic viscosity, on cooling, single-oriented thermally reversible gel is formed. Polymer crystallizes on cooling no matter solvent is present or not. Such amount of polymer is preferably dissolved that product of polymer concentration and [η]value exceeds 0.35(dl/g). EFFECT: simplified procedure. |
