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A method for preparing poly(carbonate-eth erimide) compound

A technology of polyetherimide chain and polycarbonate, which is applied in the field of preparing polymer compounds, can solve the problems of reducing the heat resistance and chemical resistance of copolymers and the like

Active Publication Date: 2018-11-23
PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ester functionality in the structure may reduce thermal and chemical resistance in copolymers

Method used

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  • A method for preparing poly(carbonate-eth erimide) compound
  • A method for preparing poly(carbonate-eth erimide) compound
  • A method for preparing poly(carbonate-eth erimide) compound

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0130] - Preparation of polyetherimide segments, including

[0131] About 1.38 g of 4,4'-(4,4'-isopropylidenediphenyl-1,1'-diyldioxy)diphenylamine was dissolved in about 6 mL of N-methyl-2-pyrrolidone ( NMP) solution was mixed with about 2.62 g of 4,4'-(4,4'-isopropylidenediphenoxy)bis(phthalic anhydride) in about 6 mL of NMP solution. The mixture was stirred for about 30 minutes at a temperature of about 10°C. Then, 0.44 g of 4-chloroaniline dissolved in about 3 mL of NMP was added to the mixture and stirred for about 30 minutes. Then, toluene was added and refluxed at about 180°C for at least about 8 hours. The resulting mixture was precipitated in about 200 mL of methanol. The resulting polyetherimide was dried under vacuum.

[0132] - Preparation of polycarbonates, including

[0133] About 100 grams of polycarbonate having a molecular weight of about 30,000 and about 200 grams of bisphenol A were mixed in a round bottom flask. The mixture was then heated at about...

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Abstract

The present invention relates to a method for preparing poly(carbonate- etherimide) compound comprising polycarbonate segment as shown in the structure (A) and polyetherimide segment as shown in the structure (B). Said method does not contain a highly toxic phosgene in its operation, can be performed easily, and can be operated at not high temperature, wherein R1 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; R2 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; m is an integer from 1 to 15; and n is an integer from 1 to 10.

Description

technical field [0001] The present invention relates to a process for preparing poly(carbonate-etherimide) compounds. Background technique [0002] At present, polycarbonate is one of the thermoplastics, which have been widely used in many industries such as automobile industry, home appliance industry and electronics industry due to their unique characteristics such as transparency, strength and impact resistance, etc. middle. However, polycarbonate has several disadvantages that limit its application, including chemical resistance and low heat resistance. Therefore, attempts have been made by blending polycarbonate with other heat and chemical resistant polymers such as polyetherimides and / or synthesizing imide) polycarbonate to improve polycarbonate properties to overcome the problem. [0003] US4548997 discloses polymer blends between polycarbonate and polyetherimide. Said polymers exhibit better heat resistance compared to polycarbonate. However, it was found that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/00C08G73/16C08L69/00C07D209/48C08G64/12
CPCC08G73/10C08G73/1046C08G73/1071C08G73/1021C08G64/183C08G64/12C08G64/18C08G73/1053C08K3/16C08K3/26C08K5/3432
Inventor 苏帕坎特·通艾帕帕皮达·蓬苏里亚萨克苏查达·唐-阿莫苏珊苏拉乌特·卢福萨蒙特拉·乌里吉特西里瓦纳·欧卡福
Owner PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
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