NDLI: In situ sol–gel fabrication of new poly(amide–ether–imide)/titania (TiO2) nanocomposite thin films containing l-leucine moieties

Content Provider	Springer Nature Link
Author	Seyedjamali, Hojjat Pirisedigh, Azadeh
Copyright Year	2010
Abstract	In this study, the synthesis, morphology, and thermal properties of amino acid containing polyimide/titania nanohybrid films are investigated. At first, a chiral diamine containing l-leucine moieties in the structure (synthesized previously) was polymerized with 4,4′-oxydiphthalic anhydride in extremely dry conditions. Resulted poly(amic acid) (PAA) was mixed with a moisture-sensitive titania precursor (tetraethyl orthotitanate [Ti(OEt)4]) and casted to a dust-free glass plate. The water derived from thermal imidization of PAA hydrolyzed Ti(OEt)4 to titania nanoparticles with almost spherical shapes. The thermogravimetric analysis of various nanocomposites confirms the improvement in the thermal stability with the increase in the percentage of titania nanoparticle. The transmission electron microscopy of nanohybrid films with 3%, 5%, and 10% w/w of titania contents confirms well dispersion of nanoparticles in the polymer ground. The X-ray diffraction spectra showed that the titania contents have amorphous structure.
Starting Page	15
Ending Page	20
Page Count	6
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	289
Issue Number	1
e-ISSN	14351536
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-09-21
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nanocomposite Chiral diamine l-Leucine Sol–gel Thermogravimetric analysis Titania Food Science Physical Chemistry Characterization and Evaluation of Materials Soft and Granular Matter, Complex Fluids and Microfluidics Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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