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Chlorosulfonated poly(propylene carbonate) and preparation method thereof

A technology of chlorosulfonated polypropylene carbonate and polypropylene carbonate, applied in polycarbonate coatings, coatings, adhesives and other directions, can solve the problems of less research on modification, difficult promotion and application, complicated modification methods, etc. To achieve the effect of reducing the molecular weight, the method is simple and easy, and the electronegativity is enhanced

Active Publication Date: 2021-06-22
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, so far, there are still few related modification studies, and most of the modification methods are relatively complicated, and it is difficult to be directly applied to large-scale industrialization and application.

Method used

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  • Chlorosulfonated poly(propylene carbonate) and preparation method thereof
  • Chlorosulfonated poly(propylene carbonate) and preparation method thereof
  • Chlorosulfonated poly(propylene carbonate) and preparation method thereof

Examples

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preparation example Construction

[0051] The invention provides a kind of preparation method of chlorosulfonated polypropylene carbonate, comprises the following steps:

[0052] 1) The poly(propylene carbonate) and / or the chlorinated poly(propylene carbonate) and the chlorosulfonation reagent are subjected to a chlorosulfonation reaction to obtain the chlorosulfonated poly(propylene carbonate).

[0053] The present invention is to the structure, parameter and degree of polymerization etc. of the chlorosulfonated polypropylene carbonate in the preparation method of described chlorosulfonated polypropylene carbonate, and corresponding preferred scheme, and the aforementioned chlorosulfonated polypropylene carbonate The structures, parameters, degree of aggregation, etc., and the corresponding preferred schemes can preferably correspond one by one, and details will not be repeated here.

[0054] In the present invention, polypropylene carbonate and / or chlorinated polypropylene carbonate, and chlorosulfonating rea...

Embodiment 1

[0079] 20g polypropylene carbonate (PPC) and 3g silicon dioxide (SiO 2 ) into a three-necked flask, silicon dioxide is a dispersant, mechanically stirred; add 5.4g of sulfonyl chloride (SO 2 Cl 2 ), then heated up to 110°C in an oil bath, treated the tail gas with sodium hydroxide solution, carried out chlorosulfonation reaction for 60min, then immediately poured into a petri dish, cooled at room temperature, and obtained chlorosulfonated polypropylene carbonate in a translucent gel state ester.

[0080] The chlorosulfonated polypropylene carbonate prepared in Example 1 of the present invention was characterized and tested.

[0081] see figure 2 , figure 2 A photo of the appearance of the chlorosulfonated polypropylene carbonate prepared in Example 1 of the present invention.

[0082] The products obtained in the examples of the present invention were tested by normal temperature gel permeation chromatography.

[0083] Referring to Table 1, Table 1 shows the molecular ...

Embodiment 2

[0099] 20g polypropylene carbonate (PPC) and 3g silicon dioxide (SiO 2 ) into a three-necked flask, silicon dioxide is a dispersant, mechanically stirred; add 5.4g of sulfonyl chloride (SO 2 Cl 2 ), then heated up to 110°C in an oil bath, treated tail gas with sodium hydroxide solution, and carried out chlorosulfonation reaction for 70 minutes, then immediately poured into a petri dish, cooled at room temperature, and obtained transparent semi-fluid chlorosulfonated polypropylene carbonate.

[0100] The chlorosulfonated polypropylene carbonate prepared in Example 2 of the present invention was characterized and tested.

[0101] see Figure 5 , Figure 5 A photo of the appearance of the chlorosulfonated polypropylene carbonate prepared in Example 1 of the present invention.

[0102] The products obtained in the examples of the present invention were tested by normal temperature gel permeation chromatography.

[0103] Referring to Table 1, Table 1 shows the molecular weight...

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Abstract

The invention provides chlorosulfonated poly(propylene carbonate) which has a structure as shown in a formula I. Compared with existing poly(propylene carbonate) and chlorinated poly(propylene carbonate), the chlorosulfonated poly(propylene carbonate) with a specific structure is obtained through design, due to the combined action of sulfonyl groups and chlorine elements, the electronegativity is greatly enhanced, the electron withdrawing capacity is sharply improved, the chlorosulfonated poly(propylene carbonate) can have better interaction with other materials, and can be applied to the fields of adhesives, non-setting adhesives, coatings and the like. According to the invention, a high-activity chlorosulfonyl active group is introduced to a poly(propylene carbonate) molecular chain, so that the molecular weight of a final product can be reduced to different extents, and the interfacial compatibility between poly(propylene carbonate) and different substrates is effectively regulated and controlled, thereby changing the form and viscosity of the product. Meanwhile, the chlorosulfonated poly(propylene carbonate) is a full-biodegradable material.

Description

technical field [0001] The invention relates to the technical field of polypropylene carbonate, in particular to a chlorosulfonated polypropylene carbonate and a preparation method thereof. Background technique [0002] Carbon dioxide is a greenhouse gas. As a modern chemical material, it has the advantages of being cheap, easy to obtain and abundant in reserves. The large-scale fixation of carbon dioxide as a chemical material has become a new research hotspot. Polypropylene carbonate (PPC) is a biodegradable copolymer synthesized from carbon dioxide and propylene oxide. Although polypropylene carbonate has now entered the stage of industrial production, as an amorphous polymer with a glass transition temperature of only about 35°C, it has high brittleness, low tensile strength, and low elongation at break at room temperature; it also has high heat sensitivity and high temperature. Dimensional stability is poor in the state, and these defects make it difficult to use it al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G64/42C09J169/00C09D169/00
CPCC08G64/42C09J169/00C09D169/00Y02W90/10C08G64/0233C08G64/025
Inventor 姜伟金晶高云宝闫南杨钧
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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