Methylcellulose strengthened polyimide aerogels with excellent oil/water separation performance
Sign Up to like & getrecommendations! Published in 2020 at "Cellulose"
DOI: 10.1007/s10570-020-03311-6
Abstract: Polyimide (PI) aerogels have great potential in oil/water separation field, but the extreme volume shrinkage during the fabrication still remains challenging. Herein, a simple yet efficient strategy of incorporating methylcellulose (MC) in PI aerogels is… read more here.
Keywords: oil water; water separation; water; polyimide aerogels ... See more keywords
Facile preparation of cross-linked polyimide aerogels with carboxylic functionalization for CO2 capture
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2017.04.003
Abstract: Abstract In this study, highly cross-linked and completely imidized polyimide aerogels containing carboxyl groups were successfully synthesized using a mild sol-gel method at room temperature from 3,5-diaminobenzoic (DABA) and biphenyl-3,3′,4,4′-tetracarboxylic (BPDA) and cross-linked with 1,3,5-triaminophenoxybenzene.… read more here.
Keywords: co2; polyimide aerogels; cross linked; facile preparation ... See more keywords
Facile Fabrication of Mechanically Strong and Thermal Resistant Polyimide Aerogels with an Excess of Cross-Linker
Sign Up to like & getrecommendations! Published in 2020 at "Journal of materials research and technology"
DOI: 10.1016/j.jmrt.2020.07.075
Abstract: ABSTRACT In this study, we report the effect of the number of formulated repeat units (n), the type of diamine and the cross-linker content on pore morphology, structure and mechanical properties of vacuum-dried polyimide aerogels.… read more here.
Keywords: polyimide aerogels; excess cross; cross linker; facile fabrication ... See more keywords
A facile method to fabricate the polyimide aerogels with controllable microstructure by freeze-drying
Sign Up to like & getrecommendations! Published in 2020 at "Materials Letters"
DOI: 10.1016/j.matlet.2020.127558
Abstract: Abstract A facile method for preparing porous polyimide aerogels was successfully developed. Poly (amic acid) solution composed by 2,2-bis(3,4-anhydrodicarboxyphenyl) hexafluoropropane and 4,4′-oxydianiline were synthesized in solvent dioxane or dioxane/t-butanol. The poly (amic acid) aerogels can… read more here.
Keywords: freeze drying; aerogels controllable; facile method; controllable microstructure ... See more keywords
PPDA-PMDA polyimide aerogels with tailored nanostructure assembly for air filtering applications
Sign Up to like & getrecommendations! Published in 2020 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2020.117279
Abstract: Abstract Due to their high porosity and nanoporous morphology, aerogels have presented unique properties and thus offered a very high potential capability to be used in leading applications such as super thermal insulation and nanoparticle… read more here.
Keywords: polyimide aerogels; ppda pmda; pmda aerogels; morphology ... See more keywords
Mechanically Strong and Thermally Stable Chemical Cross-Linked Polyimide Aerogels for Thermal Insulator.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c14007
Abstract: High-performance thermal insulating materials are highly desirable in several fields, especially for thermal insulation of buildings to reduce energy consumption. Owing to the remarkable thermal stability, high porosity, low density, and outstanding mechanical features, polyimide… read more here.
Keywords: cross linked; linked polyimide; thermal insulation; chemical cross ... See more keywords
Polyimide aerogels with novel bimodal micro and nano porous structure assembly for airborne nano filtering applications
Sign Up to like & getrecommendations! Published in 2020 at "RSC Advances"
DOI: 10.1039/d0ra03907a
Abstract: Aerogels have presented a very high potential to be utilized as airborne nanoparticles' filtration media due to their nanoscale pore size and extremely high porosity. The filtering performance of aerogels, such as air permeability and… read more here.
Keywords: micro nano; bimodal micro; nano porous; polyimide aerogels ... See more keywords
The synthesis, characterization and carbon dioxide adsorption of polyimide aerogels containing Tröger’s base units
Sign Up to like & getrecommendations! Published in 2022 at "High Performance Polymers"
DOI: 10.1177/09540083221115567
Abstract: Microporous polymers with uniform pores and large specific surface areas have been extensively studied in the field of CO2 adsorption and separation. However, the synthesis of these microporous materials is quite complex and difficult to… read more here.
Keywords: adsorption; co2; polyimide aerogels; ger base ... See more keywords
Constructing Polyimide Aerogels with Carboxyl for CO2 Adsorption
Sign Up to like & getrecommendations! Published in 2022 at "Polymers"
DOI: 10.3390/polym14030359
Abstract: In this study, mesoporous polyimide aerogels with carboxyl were successfully synthesized by the co-polymerization method at room temperature from pyromellitic dianhydride and 1,3,5-triaminophenoxybenzene, 3,5-diaminobenzoic acid, and 2,2′-dimethyl-4,4′-diaminobiphenyl. Compared to previously reported porous organic polymer materials,… read more here.
Keywords: adsorption; constructing polyimide; co2 adsorption; aerogels carboxyl ... See more keywords