Thermomechanical characterization of thermoplastic polyimide to improve the chain interaction via crystalline domains
Thermomechanical characterization of thermoplastic polyimide to improve the chain interaction via crystalline domains
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热塑性聚酰亚胺的热机械表征,通过晶域改善链相互作用
DOI:
10.1002/pen.25194
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发表时间:
2019
影响因子:
3.2
通讯作者:
Harmon, Julie P.
中科院分区:
文献类型:
--
作者:
Rivera Nicholls, Alejandro;Craft, Garrett;Perez, Yesenia;Pellissier, Matthew;Stock, John A.;Testemale, Maxime;Kull, Ken;Eubank, Jarrod;Harmon, Julie P.
In a previous study on polyimides, we incorporated an aromatic diamine monomer with a methylene linker, 4,4′‐methylenebis(2,6‐dimethylaniline), to make a robust main chain along with aliphatic polyetherdiamine backbone linkers to decrease rigidity. In this report, we explore the behavior of crystalline regions provided by the organized packing of polyethylene oxide into the formerly characterized polymers. The polymers were designed to exhibit thermal properties in between those of conventional aromatic polyimides and polymers with wholly aliphatic ether diamine links, with a target to improve the mechanical characteristics. Through dynamic mechanical analysis and differential scanning calorimetry, it is shown that the incorporation of polyethylene oxide diamine and the removal of methyl pending groups serve to improve the organized packing of the chains. All of this allows for a broader range in tenability of thermal and mechanical properties of the polyimide. Furthermore, the crystalline regions are an important component to maintain the temperature stability of polyimide while maintaining the processability. The polymers are characterized by Fourier‐transform infrared spectroscopy, thermomechanical and calorimetric analysis, microhardness measurements, tensile testing, and wide‐angle X‐ray scattering. POLYM. ENG. SCI., 59:1919–1932, 2019. © 2019 Society of Plastics Engineers
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影响因子:
3.2
作者:
Rivera Nicholls, Alejandro;Kull, Ken;Cerrato, Cole;Craft, Garrett;Diry, Jean‐Baptiste;Renoir, Emilie;Perez, Yesenia;Harmon, Julie P.
通讯作者:
Harmon, Julie P.
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Kimberly B. Shepard;H. Gevgilili;M. Ocampo;Jia Li;F. Fisher;D. Kalyon
通讯作者:
D. Kalyon
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
Tatsuo Inoue;Yoshihiro Kumagai;M. Kakimoto;Y. Imai;J. Watanabe
通讯作者:
J. Watanabe
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
Jesse D. Gander;A. J. Giacomin
通讯作者:
A. J. Giacomin
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
Wen;T. Ko;R. Vora;T. Chung
通讯作者:
T. Chung