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A Versatile Equilibrium Method for the Synthesis of High-Strength, Ladder-like Polyphenylsilsesquioxanes with Finely Tunable Molecular Parameters.

作者信息

Ershova Tatyana O, Anisimov Anton A, Temnikov Maxim N, Novikov Maxim A, Buzin Mikhail I, Nikiforova Galina G, Dyuzhikova Yulia S, Ushakov Ivan E, Shchegolikhina Olga I, Muzafarov Aziz M

机构信息

A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia.

Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Pr., 119991 Moscow, Russia.

出版信息

Polymers (Basel). 2021 Dec 18;13(24):4452. doi: 10.3390/polym13244452.

DOI:10.3390/polym13244452
PMID:34961003
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8705838/
Abstract

A versatile equilibrium method for synthesizing ladder-like polyphenylsilsesquioxanes (L-PPSQs) with various molecular weights (from 4 to 500 kDa) in liquid ammonia was developed. The effect of diverse parameters, such as temperature, monomer concentration, reaction time, addition or removal of water from the reaction medium, on the polycondensation process was determined. The molecular weight characteristics and structure of the L-PPSQ elements obtained were determined by GPC, H, Si NMR, IR spectroscopy, viscometry, and PXRD methods. The physicochemical properties of L-PPSQs were determined by TGA and mechanical analyses.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/2ae174ec9e5d/polymers-13-04452-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/9c06ea5d412b/polymers-13-04452-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/f25bb34d913e/polymers-13-04452-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/680ff889ee0d/polymers-13-04452-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/64ef5d5bddd8/polymers-13-04452-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/1be528c48076/polymers-13-04452-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/857a85a12bde/polymers-13-04452-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/bd79783ea0fd/polymers-13-04452-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/4b113922cb61/polymers-13-04452-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/4065eaac71fb/polymers-13-04452-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/1f3fc26d8451/polymers-13-04452-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/34563dd5dd08/polymers-13-04452-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/0accc795a01c/polymers-13-04452-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/952ce15f9ee6/polymers-13-04452-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/cf7e49a97f71/polymers-13-04452-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/f8df02b776e9/polymers-13-04452-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/9d0af5715f08/polymers-13-04452-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/2ae174ec9e5d/polymers-13-04452-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/9c06ea5d412b/polymers-13-04452-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/f25bb34d913e/polymers-13-04452-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/680ff889ee0d/polymers-13-04452-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/64ef5d5bddd8/polymers-13-04452-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/1be528c48076/polymers-13-04452-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/857a85a12bde/polymers-13-04452-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/bd79783ea0fd/polymers-13-04452-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/4b113922cb61/polymers-13-04452-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/4065eaac71fb/polymers-13-04452-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/1f3fc26d8451/polymers-13-04452-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/34563dd5dd08/polymers-13-04452-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/0accc795a01c/polymers-13-04452-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/952ce15f9ee6/polymers-13-04452-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/cf7e49a97f71/polymers-13-04452-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/f8df02b776e9/polymers-13-04452-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/9d0af5715f08/polymers-13-04452-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33dd/8705838/2ae174ec9e5d/polymers-13-04452-g016.jpg

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本文引用的文献

1
Polyphenylsilsesquioxanes. New structures-new properties.聚倍半硅氧烷。新结构——新特性。
RSC Adv. 2020 Nov 26;10(70):43129-43152. doi: 10.1039/d0ra07854a. eCollection 2020 Nov 23.
2
Novel and direct transformation of methyl ketones or carbinols to primary amides by employing aqueous ammonia.通过使用氨水将甲基酮或甲醇直接转化为伯酰胺的新方法。
Org Lett. 2009 Sep 3;11(17):3810-3. doi: 10.1021/ol901250c.
铕和铽@倍半硅氧烷多面体低聚倍半硅氧烷：双发光材料
Materials (Basel). 2022 Nov 12;15(22):7996. doi: 10.3390/ma15227996.