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Polymer Bulletin

, Volume 76, Issue 1, pp 387–407 | Cite as

Synthesis and studies on phosphazene core-based POSS-reinforced polyimide nanocomposites

  • Rajamanickam Revathi
  • Pichaimani Prabunathan
  • Muthukaruppan AlagarEmail author
Original Paper
  • 96 Downloads

Abstract

In the present work, phosphazene core-based polyimide and polyhedral oligomeric silsesquioxane (POSS)-reinforced phosphazene polyimide nanocomposites were developed and characterized. The molecular structure of cyclophosphazene amine (PZA) was confirmed by 1H, 13C NMR and MASS spectroscopic methods. The developed polyimide and its composites were studied for optical, thermal and dielectric properties along with their morphological studies. Interestingly, it was found that the incorporation of 10 wt% of POSS-reinforced PZI composites possesses an improved glass transition temperature (Tg), thermal stability, char yield and flame-retardant behavior than those of neat PZI matrix. The value of dielectric constant gets decreased with increasing the weight percentages of POSS reinforcement and thus 10 wt% POSS-reinforced PZI composites possesses the lowest value of dielectric constant (k = 2.1). Further, it also possesses the highest UV shielding behavior in UVA region, i.e., 93% with minimum weight loss even after exposing for 165 h. The antibacterial activity of the neat PZI matrix and POSS/PZI composites were also studied. The data obtained from different studies that it is suggested that the 10 wt% of POSS/PZI hybrid composite materials can be used in the form of coatings, sealants and matrices in aerospace as well as microelectronics applications.

Keywords

Cyclotriphosphazene Polyimide POSS Hybrid composites UV radiation resistant Antibacterial activity Low dielectric constant Thermal stability Flame-retardant behavior 

Supplementary material

289_2018_2391_MOESM1_ESM.docx (242 kb)
Supplementary material 1 (DOCX 241 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of ChemistryVel Tech Multi Tech Dr. Rangarajan Dr Sakunthala Engineering CollegeAvadi, ChennaiIndia
  2. 2.Department of Handloom and Textile TechnologyIndian Institute of Handloom TechnologySalemIndia
  3. 3.Centre of Excellence for Advanced Material Manufacturing, Processing and Characterization (CoExAMMPC)Vignan’s UniversityVadlamudi, GunturIndia

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