Porous monoliths from polyimide: Synthesis, modifications and applications

Hu, Rubei; Chen, Yiming; Zhang, Chunmei; Jiang, Shaohua; Hou, Haoqing; Duan, Gaigai

doi:10.1016/j.pmatsci.2024.101284

Cited by 13 publications

(1 citation statement)

References 245 publications

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“…Polyimides (PIs) are an important class of condensation polymers characterized by high thermal stability and excellent mechanical properties [27][28][29][30][31][32][33]. There are approaches to obtain biocompatible materials by the modification of implantable polyimide films [34] and polyimide covalent organic frameworks for drug delivery applications [35].…”

Section: Introductionmentioning

confidence: 99%

Soluble Fluorinated Cardo Copolyimide as an Effective Additive to Photopolymerizable Compositions Based on Di(meth)acrylates: Application for Highly Thermostable Primary Protective Coating of Silica Optical Fiber

Sapozhnikov,

Melnik,

Chuchalov

et al. 2024

IJMS

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The development of photocurable compositions is in high demand for the manufacture of functional materials for electronics, optics, medicine, energy, etc. The properties of the final photo-cured material are primarily determined by the initial mixture, which needs to be tuned for each application. In this study we propose to use simple systems based on di(meth)acrylate, polyimide and photoinitiator for the preparation of new photo-curable compositions. It was established that a fluorinated cardo copolyimide (FCPI) based on 2,2-bis-(3,4-dicarboxydiphenyl)hexafluoropropane dianhydride, 9,9-bis-(4-aminophenyl)fluorene and 2,2-bis-(4-aminophenyl)hexafluoropropane (1.00:0.75:0.25 mol) has excellent solubility in di(met)acrylates. This made it possible to prepare solutions of FCPI in such monomers, to study the effect of FCPI on the kinetics of their photopolymerization in situ and the properties of the resulting polymers. According to the obtained data, the solutions of FCPI (23 wt.%) in 1,4-butanediol diacrylate (BDDA) and FCPI (15 wt.%) in tetraethylene glycol diacrylate were tested for the formation of the primary protective coatings of the silica optical fibers. It was found that the new coating of poly(BDDA–FCPI23%) can withstand prolonged annealing at 200 °C (72 h), which is comparable or superior to the known most thermally stable photo-curable coatings. The proposed approach can be applied to obtain other functional materials.

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Section: Introductionmentioning

confidence: 99%

Soluble Fluorinated Cardo Copolyimide as an Effective Additive to Photopolymerizable Compositions Based on Di(meth)acrylates: Application for Highly Thermostable Primary Protective Coating of Silica Optical Fiber

Sapozhnikov,

Melnik,

Chuchalov

et al. 2024

IJMS

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In Situ Construction of Polypyrrole–Silver Composite Conductive Phase in High‐Performance Polyimide Sponge and Study of Sensing Behavior Under Microstress

Han,

Zhang,

Sun

et al. 2024

Adv Eng Mater

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Composites comprising conductive polymers and metal particles have garnered considerable interest in sensor technology due to their excellent electrical conductivity. However, producing controllable pressure sensors that retain high sensitivity under microstress remains challenging. Polyimide (PI) sponge exhibits excellent chemical and thermal stability and a porous structure that facilitates considerable deformation under low stress levels and results in good sensitivity to external forces. Herein, a conductive polymer–metal composite conductive phase, polypyrrole–silver (PPy–Ag), is directly fabricated on the PI surface through incipient network conformal growth. This method ensures that the PPy–Ag composite maintains optimal performance within its original temperature range, thereby enhancing detection sensitivity at low stress levels. The maximum conductivity of the fabricated PPy–Ag/PI composite sponge‐based flexible piezoresistive sensor is 2.42 × 10−4 S m−1, and the sensitivity is recorded at 16.31 kPa−1 within a stress range of 0–80 Pa. After undergoing 1000 compression cycles, the sensor exhibits commendable stability and reproducibility.

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State‐of‐the‐Art Synthesis of Porous Polymer Materials and Their Several Fantastic Biomedical Applications: a Review

Ahmed,

Loukanov,

Tsai

2024

Adv Healthcare Materials

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Porous polymers, including hydrogels, covalent organic frameworks (COFs), and hyper crosslinked polymers (HCPs), have become essential in biomedical research for their tunable pore architectures, large surface areas, and functional versatility. This review provides a comprehensive overview of their classification and updated synthesis mechanisms, such as 3D printing, electrospinning, and molecular imprinting. Their pivotal roles in drug delivery, tissue engineering, wound healing, and photodynamic/photothermal therapies, focusing on how pore size, distribution, and architecture impact drug release, cellular interactions, and therapeutic outcomes, are explored. Key challenges, including biocompatibility, mechanical strength, controlled degradation, and scalability, are critically assessed alongside emerging strategies to enhance clinical potential. Finally, recent challenges and future perspectives, emphasizing the broader biomedical applications of porous polymers, are addressed. This work provides valuable insights for advancing next‐generation biomedical innovations through these materials.

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Porous monoliths from polyimide: Synthesis, modifications and applications

Cited by 13 publications

References 245 publications

Soluble Fluorinated Cardo Copolyimide as an Effective Additive to Photopolymerizable Compositions Based on Di(meth)acrylates: Application for Highly Thermostable Primary Protective Coating of Silica Optical Fiber

Soluble Fluorinated Cardo Copolyimide as an Effective Additive to Photopolymerizable Compositions Based on Di(meth)acrylates: Application for Highly Thermostable Primary Protective Coating of Silica Optical Fiber

In Situ Construction of Polypyrrole–Silver Composite Conductive Phase in High‐Performance Polyimide Sponge and Study of Sensing Behavior Under Microstress

State‐of‐the‐Art Synthesis of Porous Polymer Materials and Their Several Fantastic Biomedical Applications: a Review

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