Thermoplastic fluorine-containing fully aromatic polyimide powder and preparation method thereof
A polyimide powder, thermoplastic technology, applied in the field of thermoplastic fluorine-containing peraromatic polyimide powder and its preparation, can solve problems such as unpublished literature or patent reports, and achieve good application prospects and environmental friendliness , the effect of mild reaction conditions
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0072] 65.4 grams (0.1 moles) of 2,2-bis[4-(2-trifluoromethyl-4-aminophenoxy)phenyl]hexafluoropropane (BAPFP-2TF), 52.0 grams (0.1 moles) of 2 , 2-bis[4-(3,4-dicarboxyphenoxy) phenyl] propane dianhydride (BPADA), 0.005 mole isoquinoline and 1308 gram o-cresol are put into reactor, stir, heat up to Within the temperature range of 100°C-180°C, after maintaining the reaction for 5 hours, pour it into 13080 grams of ethanol precipitant under high-speed stirring state while it is hot, and precipitate solid powder, filter, wash with ethanol 2-3 times, soak in acetone 5 hours, filter, wash with deionized water 2-3 times, dry, obtain 111.5 grams of BAPFP-2TF / BPADA-PI thermoplastic fluorine-containing fully aromatic polyimide white powder (theoretical amount 113.8 grams), yield is 98% , the glass transition temperature is 189.5°C, and its Fourier transform infrared spectrum (FTIR) is as follows figure 2 shown.
[0073] The molecular structural formula of BAPFP-2TF / BPADA-PI thermopla...
Embodiment 2
[0076] 54.7 grams (0.1 moles) of 2,2-bis[4-(2-trifluoromethyl-4-aminophenoxy)phenyl]propane (BAPP-2TF), 52.0 grams (0.1 moles) of 2,2 -Bis[4-(3,4-dicarboxyphenoxy)phenyl]propanedianhydride (BPADA), 0.001 mole of isoquinoline and 274 grams of o-cresol were put into the reaction kettle, stirred, and heated to 100°C Within the temperature range of -180°C, after maintaining the reaction for 10 hours, pour it into 1370 grams of methanol precipitant under high-speed stirring state while it is hot, and precipitate solid powder, filter, wash with isopropanol 2-3 times, soak in acetone 5 hours, filter, wash 2-3 times with deionized water, dry, obtain 102.1 grams of BAPP-2TF / BPADA-PI thermoplastic fluorine-containing fully aromatic polyimide white powder (theoretical amount 103.1 grams), yield is 99% , the glass transition temperature is 192.2°C, and its Fourier transform infrared spectrum (FTIR) is as follows image 3 shown.
[0077] The molecular structural formula of BAPP-2TF / BPADA...
Embodiment 3
[0080] 50.4 grams (0.1 moles) of 4,4'-bis(2-trifluoromethyl-4-aminophenoxy)biphenyl (DABP-2TF), 52.0 grams (0.1 moles) of 2,2-bis[4 -(3,4-dicarboxyphenoxy)phenyl]propane dianhydride (BPADA), 0.001 mole of isoquinoline, 0.009 mole of pyridine and 600 grams of o-cresol were put into the reaction kettle, stirred, and heated to 100°C In the temperature range of -180°C, after maintaining the reaction for 8 hours, pour it into 30,000 grams of isopropanol precipitant under high-speed stirring state while it is hot, and precipitate solid powder, filter, wash with isopropanol for 2-3 times, acetone soaked in medium for 5 hours, filtered, washed with deionized water for 2-3 times, and dried to obtain 93.8 grams of DABP-2TF / BPADA-PI thermoplastic fluorine-containing fully aromatic polyimide white powder (theoretical amount 98.8 grams), the yield is 95%, the glass transition temperature is 219.7 ° C, and its Fourier transform infrared spectrum (FTIR) is as follows Figure 4 shown.
[00...
PUM
Property | Measurement | Unit |
---|---|---|
glass transition temperature | aaaaa | aaaaa |
glass transition temperature | aaaaa | aaaaa |
glass transition temperature | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com