共 3 条
Condensation of all-cis-tetraphenylcyclotetrasiloxanetetraol in ammonia: new method for preparation of ladder-like polyphenylsilsesquioxanes
被引:17
|作者:
Anisimov, Anton A.
[1
]
Polshchikova, Natalia V.
[1
]
Vysochinskaya, Yuliya S.
[1
,2
]
Zader, Pavel A.
[3
]
Nikiforova, Galina G.
[1
]
Peregudov, Alexander S.
[1
]
Buzin, Mikhail I.
[1
]
Shchegolikhina, Olga I.
[1
]
Muzafarov, Aziz M.
[1
,2
]
机构:
[1] Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, Moscow 119991, Russia
[2] Russian Acad Sci, NS Enikolopov Inst Synthet Polymer Mat, Moscow 117393, Russia
[3] DI Mendeleev Univ Chem Technol Russia, Moscow 125047, Russia
基金:
俄罗斯科学基金会;
关键词:
MOLECULAR-STRUCTURE;
POLYCONDENSATION;
POLYSILSESQUIOXANES;
D O I:
10.1016/j.mencom.2019.07.022
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
One-step method for the preparation of polyphenylsilsesquioxane by condensation of all-cis-1,3,5,7-tetraphenyl-1,3,5,7-tetrahydroxycyclotetrasiloxane in liquid ammonia has been developed. This method makes it possible to produce high molecular weight polymers with regular structure in the absence of organic solvent. The structure of the polymer product was confirmed by H-1 and Si-29 NMR spectroscopy, GPC, IR spectroscopy, powder X-ray diffraction and viscosimetry.
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页码:421 / 423
页数:3
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