Title

Side-Chain Free Aromatic Polyimides Containing Anthracene Units Via Diels-Alder Precursors

Keywords

Morphology; Polyaromatics; Polyimides; Thin films

Abstract

Side-chain free aromatic polyimides are expected to possess extraordinary mechanical properties and stability because of strong primary and secondary bonding forces. However, their low solubility makes it difficult to characterize, process, and obtain high molecular weight polymers. We have prepared highly stable thin films of side-chain free aromatic polyimides from soluble Diels-Alder (DA) precursors. Heating the films of the precursors above 215°C induced retro-DA reaction, which converted the precursors to the fully aromatic polyimides. The solid-state retro-DA reactions were monitored by attenuated total reflection Fourier transformed infrared (ATR-FTIR) and UV- Vis spectrometry. A critical issue for utilizing precursor chemistry in polymer synthesis is that it may result in porous and/or deformed materials. In this work, profilometry and atomic force microscope (AFM) were applied to study the surface and volume change. Our results showed that smooth and pin-hole free films were obtained after the thermal treatment, while the volume decreased with a percentage close to the weight loss caused bv the retro-DA reaction. © 2009 Wiley Periodicals, Inc.

Publication Date

6-5-2009

Publication Title

Journal of Applied Polymer Science

Volume

112

Issue

5

Number of Pages

2953-2958

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/app.29850

Socpus ID

64249136615 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/64249136615

This document is currently not available here.

Share

COinS