Polyarylene material
A technology of aryl and aralkyl, applied in the field of polyarylene materials, can solve problems such as limited solubility and limited use of polymers
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
example 1
[0048] Example 1. DPO-CPD (6.21 g, 7.93 mmol), 1,3-DEB (1.00 g, 7.93 mmol) and propiolic acid (0.056 g, 0.79 mmol) were added via a powder funnel to a multi-neck round bottom flask containing a stir bar, The reaction solvent ethoxybenzene (40 mL) was then added. The reaction was stirred gently at room temperature. The flask was then equipped with a reflux condenser and an internal thermocouple probe attached to a self-regulating thermostat attached to a heating mantle, and placed under a nitrogen atmosphere. Next, the dark maroon contents of the flask were warmed to an internal temperature of 130°C and maintained at this temperature for 22 hours before being cooled to 25°C by removing the heating element. The resulting orange-red solution was bottled and evaluated as a crude mixture. GPC of the resulting oligomer (Oligomer 1) indicated M as determined using polystyrene standards. w It is 13900 Da.
example 4
[0049] Example 4. The procedure of Example 3 was repeated multiple times using DPO-CPD as the first monomer, 1,3-DEB or 1,4-DEB as the second monomer, and the third monomer listed in Table 1 . The weight average molecular weights of the resulting oligomers are also reported in Table 1.
[0050] Table 1
[0051] Oligomer ID
[0052] 8
example 5
[0053] Example 5. Evaluate the solubility of oligomers in various organic solvents. Each oligomer was formulated by adding 5 g of a 30% solution of the reaction product along with 5 g of ethoxybenzene (EB) to a vial to make a 15% diluted polymer solution. 1 g of polymer solution was added to a 20 mL clear vial. The solvent MMP, PGMEA or PGME / PGMEA (30:70 v / v) mixture was added dropwise to the vial until a persistent precipitation was observed or until the solution became cloudy or until a maximum of 10 g of solvent was added. The amount of solvent added in grams to the weight ratio of 1 g of polymer solution is reported in Table 2.
[0054] Table 2
[0055]
[0056] The higher the ratio in Table 2, the more soluble the oligomer in the solvent. The above data show that oligomers formed using 1,4-DEB as the second monomer are more soluble in organic solvents than corresponding oligomers formed from 1,3-DEB. These data further show that oligomers of the present invention...
PUM
Property | Measurement | Unit |
---|---|---|
thickness | aaaaa | aaaaa |
dispersity | 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