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双苯基乙炔基多面体低聚倍半硅氧烷:新型高温可加工热固性材料。

Bis-phenylethynyl polyhedral oligomeric silsesquioxanes: new high-temperature, processable thermosetting materials.

作者信息

Moore Levi M J, Zavala Jacob J, Lamb Jason T, Reams Josiah T, Yandek Gregory R, Guenthner Andrew J, Haddad Timothy S, Ghiassi Kamran B

机构信息

Air Force Research Laboratory, Aerospace Systems Directorate, Edwards AFB California 93524 USA

ERC Incorporated, Edwards AFB California 93524 USA.

出版信息

RSC Adv. 2018 Jul 31;8(48):27400-27405. doi: 10.1039/c8ra05954c. eCollection 2018 Jul 30.

DOI:10.1039/c8ra05954c
PMID:35539971
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9083338/
Abstract

Bis-phenylethynyl polyhedral oligomeric silsesquioxane (bis-PE-POSS) compounds were synthesized and thermally cured yielding crosslinked materials. After curing at 370 °C, thermal decomposition occurs near 600 °C under nitrogen. These materials were synthesized by condensation of a new phenylethynyl-functional dichlorosilane onto tetrasilanol phenyl POSS, yielding two geometric isomers.

摘要

双苯乙炔基多面体低聚倍半硅氧烷(双-PE-POSS)化合物被合成出来,并通过热固化得到交联材料。在370℃固化后,在氮气氛围下,热分解在600℃左右发生。这些材料是通过一种新型苯乙炔基官能化二氯硅烷与四硅醇苯基POSS缩合而成,产生了两种几何异构体。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/310c05bb6dae/c8ra05954c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/8d738b83f57d/c8ra05954c-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/24b45c2aaea2/c8ra05954c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/ac1a487aa037/c8ra05954c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/d47dca82a8cf/c8ra05954c-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/310c05bb6dae/c8ra05954c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/8d738b83f57d/c8ra05954c-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/24b45c2aaea2/c8ra05954c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/ac1a487aa037/c8ra05954c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/d47dca82a8cf/c8ra05954c-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/92f1/9083338/310c05bb6dae/c8ra05954c-f4.jpg

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本文引用的文献

1
Identification and quantification of cis and trans isomers in aminophenyl double-decker silsesquioxanes using 1H-29Si gHMBC NMR.使用 1H-29Si gHMBC NMR 鉴定和定量氨苯基双层硅倍半氧烷中的顺式和反式异构体。
Magn Reson Chem. 2013 Aug;51(8):490-6. doi: 10.1002/mrc.3962. Epub 2013 May 27.
2
Atomic oxygen effects on POSS polyimides in low earth orbit.原子氧对低地球轨道中 POSS 聚酰亚胺的影响。
ACS Appl Mater Interfaces. 2012 Feb;4(2):492-502. doi: 10.1021/am201509n. Epub 2012 Jan 10.