scholarly journals Effective Reduction of Volumetric Thermal Expansion of Aromatic Polyimide Films by Incorporating Interchain Crosslinking

Polymers ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 761 ◽  
Author(s):  
Shinji Ando ◽  
Mari Harada ◽  
Tomohiro Okada ◽  
Ryohei Ishige
Keyword(s):  
Thermal Expansion ◽  
Polyimide Films ◽  
Aromatic Polyimide ◽  
Volumetric Thermal Expansion ◽  
Effective Reduction

Influence of Nanosized Cerium Oxide on the Thermal Characteristics of Aromatic Polyimide Films

2020 ◽  
Vol 62 (2) ◽  
pp. 196-204
Author(s):  
I. V. Gofman ◽  
A. L. Nikolaeva ◽  
I. V. Abalov ◽  
E. M. Ivan’kova ◽  
I. V. Kuntzman ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Thermal Characteristics ◽  
Polyimide Films ◽  
Aromatic Polyimide

Molecular Orientation and Photocurrent of Alkyl-Aromatic Polyimide Films Prepared by Vapor Deposition Polymerization

1989 ◽  
Vol 28 (Part 1, No. 12) ◽  
pp. 2552-2555 ◽  
Author(s):  
Kazuo Iida ◽  
Tsukasa Nohara ◽  
Kazuyuki Totani ◽  
Shuhei Nakamura ◽  
Goro Sawa
Keyword(s):  
Vapor Deposition ◽  
Molecular Orientation ◽  
Polyimide Films ◽  
Aromatic Polyimide

Thermal expansion behavior of polyimide films containing benzoxazole unit

2014 ◽  
Vol 26 (4) ◽  
pp. 413-419 ◽  
Author(s):  
Guangliang Song ◽  
Daming Wang ◽  
Guodong Dang ◽  
Hongwei Zhou ◽  
Chunhai Chen ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Polyimide Films ◽  
Thermal Expansion Behavior ◽  
Expansion Behavior

scholarly journals Extraordinary anisotropic thermal expansion in photosalient crystals

IUCrJ ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 83-89 ◽  
Author(s):  
Khushboo Yadava ◽  
Gianpiero Gallo ◽  
Sebastian Bette ◽  
Caroline Evania Mulijanto ◽  
Durga Prasad Karothu ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Solid State ◽  
Metal Complexes ◽  
Single Crystals ◽  
Room Temperature ◽  
Volumetric Thermal Expansion ◽  
Anisotropic Thermal Expansion ◽  
Thermal Expansion Coefficients ◽  
Expansion Coefficients ◽  
Multifunctional Properties

Although a plethora of metal complexes have been characterized, those having multifunctional properties are very rare. This article reports three isotypical complexes, namely [Cu(benzoate)L 2], where L = 4-styrylpyridine (4spy) (1), 2′-fluoro-4-styrylpyridine (2F-4spy) (2) and 3′-fluoro-4-styrylpyridine (3F-4spy) (3), which show photosalient behavior (photoinduced crystal mobility) while they undergo [2+2] cycloaddition. These crystals also exhibit anisotropic thermal expansion when heated from room temperature to 200°C. The overall thermal expansion of the crystals is impressive, with the largest volumetric thermal expansion coefficients for 1, 2 and 3 of 241.8, 233.1 and 285.7 × 10−6 K−1, respectively, values that are comparable to only a handful of other reported materials known to undergo colossal thermal expansion. As a result of the expansion, their single crystals occasionally move by rolling. Altogether, these materials exhibit unusual and hitherto untapped solid-state properties.

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