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A mechanical effect of orientation
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This article is published in Journal of Polymer Science Part B: Polymer Letters.The article was published on 1966-05-01. It has received 72 citations till now. The article focuses on the topics: Orientation (graph theory).read more
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Gas transport properties of 6FDA‐durene/1,4‐phenylenediamine (pPDA) copolyimides
TL;DR: In this article, the gas transport properties of 6FDA-durene homopolymer and pPDA copolyimides have been determined for He, H2, O2, N2, and CO2.
Journal ArticleDOI
Spontaneous Molecular Orientation of Polyimides Induced by Thermal Imidization. 2. In-Plane Orientation
TL;DR: In this article, the degree of in-plane molecular orientation of various polyimides and their precursors, poly(amic acid)s (PAAs), were estimated by measuring the visible dichroic absorption at an incidence angle for a rod-like dye (perylenediimide, PEDI) dispersed in the matrices.
Journal ArticleDOI
Dielectric effects of moisture in polyimide
J. Melcher,Yang Deben,G. Arlt +2 more
TL;DR: In this paper, the authors measured the complex permittivity of polyimide (PI) films in a temperature range from 80 to 325 K and concluded that the water dipole causes this relaxation process.
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High-performance aromatic polyimide fibres: 2. Thermal mechanical and dynamic properties
TL;DR: In this article, a segmented rigid-rod polyimide synthesized from 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA) and 2,2′-bis(trifluoromethyl)-4, 4′-diaminobiphenyl (PFMB) is presented in detail.