Water-solubility polyphenylene sulfide and preparation method thereof

Abstract

The invention discloses a water-solubility polyphenylene sulfide which has a structure formula as shown in the specification. The polyphenylene sulfide dissolves in water and saturated salt water and does not dissolve in methyl pyrrolidone, dimethylacetylamide, tetrahydrofuran, toluene, acetone, chloroform and ethanol; or the polyphenylene sulfide dissolves in the water and the saturated salt water, slightly dissolves in methyl pyrrolidone, dimethylacetylamide and ethanol, and does not dissolve in tetrahydrofuran, toluene, acetone and chloroform, wherein R is N<+>(CH3)3CL<->, NH<+>(CH3)2CL<->, N<+>(CH2CH2OH)3CL<-> and NH<+>(CH2CH2OH)2CL<->. Or the invention further discloses a preparation method of the water-solubility polyphenylene sulfide. The water-solubility polyphenylene sulfide prepared by the invention has the advantages of good water-solubility, temperature resistance and salt resistance, can be expected to not only broaden application of the water-solubility polyphenylene sulfide in the field of water-solubility functional polymer but also is applied to the fields with worst working environment, such as oil field, paper making, waste water treatment and the like.

Description

technical field The invention belongs to the technical field of polyphenylene sulfide and its preparation, and in particular relates to a water-soluble polyphenylene sulfide and a preparation method thereof. Background technique Water-soluble amphoteric polymers (water-soluble amphoteric polymers) are water-soluble polymers containing positive and negative charge groups on the molecular chain. Compared with water-soluble anionic or cationic polymers containing only one charge, Their properties are relatively unique (Zang Qingda, Li Zhuomei. Journal of Functional Polymers, 1994, 7(1): 90.). For example, in terms of the nature of the force between molecules and within the molecular chain, for polyelectrolytes containing only one charge, the electrostatic force is only electrostatic repulsion, while for amphoteric polymers, the electrostatic force can be either repulsive or attractive, specifically Whether it is repulsion or attraction depends on the relative number of positiv...

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Problems solved by technology

Although polyphenylene sulfide has good potential application value in the above-mentioned fields because of its excellent chemical resistance and thermal stability, it loses the possibility of application in the above-mentioned fields because it does not dissolve in aqueous solution

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