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Process for obtaining films and blocks of cellulose acetate particularly for rapid and preparative analytical electrophoresis and for immuno- techniques
Process for obtaining films and blocks of cellulose acetate particularly for rapid and preparative analytical electrophoresis and for immuno- techniques
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机译：获得乙酸纤维素膜和嵌段的方法，特别是用于快速和制备型分析电泳以及免疫技术的方法
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摘要
An improved process for preparing films and blocks consisting essentially of cellulose diacetate aqueous gel, which are suitable for electrophoresis purposes, which process comprises dissolving cellulose diacetate in a first mixture of a major proportion of a water-miscible solvent with a minor proportion of a water-miscible swelling agent; swelling the cellulose diacetate solution by adding a second mixture of a major proportion of the swelling agent with a minor porportion of the solvent; adding to the swollen mass an amount of from 3 to 10% by weight based on the swollen mass of formamide, as regulator of the water content of the aqueous gel, substituting in the swollen mass water for the solvent and the swelling agent and casting the aqueous gel thus obtained to form a film or block by means of conventional procedures; wherein each of the foregoing steps is carried out at room temperature.
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