KR830001979A - Polymer mixture and manufacturing method - Google Patents

Abstract

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Description

Polymer mixture and manufacturing method

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1 is a graph showing the functional relationship with respect to critical temperature, time and concentration.

2 and 3 are graphs showing general properties of homogeneous polymer mixture formation.

Claims (26)

(a) a high molecular weight polymer having at least one anhydride group and (b) a high molecular weight polymer having at least one group having the ability to interact with a hydrogen atom to form a hydrogen bond. A solution of the component is prepared in an organic solvent, and then the component (b) is added to the solution, and (a) the component is dissolved in the state of proton transfer agent under the action of the component (b), before or after the proton transfer reaction in whole or in part. After the removal of the solvent, (a) and (b) the polymer has a molecular weight of 10 ⁴ or more, and a stable and homogeneous polymer mixture at high temperature is prepared. The method according to claim 1, characterized in that water is used as the proton transfer agent. The method of claim 1 or claim 2, characterized in that the solvent is maintained in a closed system at 100-200° C., maintaining a constant humidity during evaporation and recovering the solvent. The method of claim 3, characterized in that the solvent is removed at a temperature of 130-160° C. under a reduced pressure of 10-500 mmHg. Claim 1-4 of claim 1, characterized by using a polymer having at least one high molecular weight copolymer of an alkene-unsaturated monomer and maleic anhydride as the component and (b) a polymer having an ester group as the component. Method of mention. The method according to claims 1-5, characterized in that (a) a styrene-maleic anhydride copolymer is used as the component, and (b) polyvinyl acetate is used as the component. The method according to claim 1-5, characterized in that (a) a styrene-maleic anhydride copolymer is used as the component, and (b) a cellulose ester is used as the component. The method of claim 1-5 characterized by using styrene-maleic anhydride copolymer of (a) component and (b) polyacrylate as component. The method according to claims 1-5, characterized in that (a) a styrene-maleic anhydride copolymer is used as the component, and (b) a polymethacrylate is used as the component. The method of claim 1-9, characterized in that additional ingredients (and/or) are added during the preparation of the polymer mixture. Method of claim 10, characterized in that an active ingredient such as an insecticide, fungicide, herbicide, etc. is added as an additional ingredient. The method of claim 10, characterized in that a reactant for controlling the polymer mixture is used during the preparation of the polymer mixture as an additional component. Method according to claim 10, characterized in that a blowing agent is used as an additional component. A method according to claim 10, characterized in that a filler such as carbon black, talc, or fiber is used as an additional component. The product of granules, fibers, thin plates, foams, etc. obtained from the polymer mixture with or without control during or after the preparation of the polymer mixture by the method described in claims 1-14. Prepared from (a) a high molecular weight polymer having at least one anhydride group and (b) a high molecular weight polymer having at least one group interacting with a hydrogen atom, wherein (a) by the whole or partial proton transfer reaction A stable and uniform polymer mixture at high temperature, characterized in that the components (a) and (b) are bonded to each other by hydrogen bonding. The polymer mixture according to claim 16, wherein (a) a polymer having at least one high molecular weight copolymer having an alkene-unsaturated monomer and maleic anhydride is used as the component, and (b) a polymer having an ester group as the component is used. A polymer mixture according to claim 16 or 17, which comprises (a) styrene-maleic anhydride copolymer as component (a) and polyvinyl acetate as component (b). A polymer mixture according to claim 16 or 17, wherein (a) a styrene-maleic anhydride copolymer is used as the component and (b) a cellulose ester is used as the component. A polymer mixture according to claim 16 or 17, wherein (a) a styrene-maleic anhydride copolymer is used as the component and (b) a polyacrylate is used as the component. A polymer mixture according to claim 16 or 17, wherein (a) a styrene-maleic anhydride copolymer is used as the component and (b) a polymethacrylate is used as the component. A polymer mixture according to claims 16-21 containing additional component (and/or) substances. The polymer mixture according to claim 22, which adds an active ingredient such as pesticide, fungicide, herbicide, etc. as an additional ingredient. The polymer mixture according to claim 22, wherein a reactive component for controlling the polymer mixture is added during preparation of the polymer mixture as an additional component. A polymer mixture according to claim 22 in which the blowing agent is added as an additional component. The polymer mixture according to claim 22 in which a filler such as carbon black, chalk, or fiber is added as an additional material. ※ Note: Disclosure is based on the original application.