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Molecular Approach to the Development of Polyimides with Novel Structures and Properties by Zhi Yuan Wang; Timothy P. Bender; Hai Bin Zheng; Lian Zhou Chen is a Materials Science article available to read on EtoBox.

What is Molecular Approach to the Development of Polyimides with Novel Structures and Properties about?

The presented work describes a molecular approach to the design and synthesis of polyimides with novel structures and properties. Effort has been focused on the chemistry and application of new AB-type amino anhydride monomer, AX-type amino-imide monomer and unsymmetric dianhydride. It has been demonstrated that an AB-type amino anhydride can exist and be isolated and purified. It is stable at ambient temperatures and yet is polymerizable at elevated temperatures. It is further shown that this AB monomer forms a self-assembled thin film that can be polymerized in the solid state. AX-type monomers, where X being a masked anhydride group, are generally more stable and easy to obtain. They can be directly used to form polyimides or form a short block that is then incorporated into other polyimide systems. Finally, a new unsymmetric dianhydride monomer has been synthesized, which contains a phthalic anhydride and a naphthalic anhydride. As the unsymmetry of this monomer can lead to the formation of different diads in a polymer, the resulting polyimides exhibit much improved solubility while maintaining good thermal stability.

Who reads Molecular Approach to the Development of Polyimides with Novel Structures and Properties?

Author

Zhi Yuan Wang; Timothy P. Bender; Hai Bin Zheng; Lian Zhou Chen

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 1042-7147)

Published

2000

Language

EN

Field

Materials Science (Physical Sciences)