Journal
ADVANCED SCIENCE
Volume 9, Issue 1, Pages -Publisher
WILEY
DOI: 10.1002/advs.202103706
Keywords
confined polymerization; dielectric; polyaniline; polyether ether ketone; polymer crystallization
Categories
Funding
- Science and Technology Department Plan of Jilin Province, China [20190302056GX]
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Confined polymerization is an effective method for controlling the micro-nano structure inside composite materials. With this technique, high PANI content PANI/PEEK composite films have been successfully synthesized, showing potential applications in various fields.
Confined polymerization is an effective method for precise synthesis, which can further control the micro-nano structure inside the composite material. Polyaniline (PANI)-based composites are usually prepared by blending and original growth methods. However, due to the strong rigidity and hydrogen bonding of PANI, the content of PANI composites is low and easy to agglomerate. Here, based on confined polymerization, it is reported that polyaniline /polyether ether ketone (PANI/PEEK) film with high PANI content is synthesized in situ by a one-step method. The micro-nano structure of the two polymers in the confined space is further explored and it is found that PANI grows in the free volume of the PEEK chain, making the arrangement of the PEEK chain more orderly. Under the best experimental conditions, the prepared 16 mu m-PANI/PEEK film has a dielectric constant of 205.4 (dielectric loss 0.401), the 75 mu m-PANI/PEEK film has a conductivity of 3.01x10(-4) S m(-1). The prepared PANI/PEEK composite film can be further used as electronic packaging materials, conductive materials, and other fields, which has potential application prospects in anti-static, electromagnetic shielding materials, corrosion resistance, and other fields.
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