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Silsesquioxanes

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Functional Molecular Silicon Compounds I

Part of the book series: Structure and Bonding ((STRUCTURE,volume 155))

Abstract

The diversity of structures of silsesquioxanes with the general composition (RSiO1.5) n is great and involves amorphous compounds, ladder structures, open cages, and polyhedral oligomeric silsesquioxane (POSS) molecules. The obtained structure morphology depends strongly on the applied reaction conditions. The enormous amount of potential substitution patterns combined with the chemical and thermal robust silicon oxide core makes silsesquioxanes ideal materials for a variety of applications. This review covers the structures and synthetic approaches of this type of compounds as well as their properties and potential applications. It focuses on results obtained in the last decade.

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Abbreviations

BET:

Brunauer–Emmett–Teller method for surface area analysis

iPP:

Isotactic polypropylene

MA-POSS:

Methacrylcyclopentyl-POSS

Me8T8 :

Octamethyl-POSS

MEH-PPV:

Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]

OLED:

Organic light-emitting diode

PDA:

1,4-Phenylenediamine

PDMS:

Polydimethylsiloxane

PI:

Polyimide

POF:

Poly(9,9′-dioctylfluorene)

POSS:

Polyhedral oligomeric silsesquioxanes

PP:

Polypropylene

SCP:

Stepwise coupling polymerization

TBAF:

Tetrabutylammonium fluoride

TEOS:

Tetraethylorthosilicate (or tetraethoxysilane)

TDSS:

Tetrakisdimethylsiloxysilane

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  1. Inorganic Chemistry, Saarland University, Am Markt, Zeile 3, 66125, Saarbrücken, Germany

    Guido Kickelbick

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  1. Chair of General and Inorganic Chemistry, Saarland University, Saarbrücken, Germany

    David Scheschkewitz

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Kickelbick, G. (2013). Silsesquioxanes. In: Scheschkewitz, D. (eds) Functional Molecular Silicon Compounds I. Structure and Bonding, vol 155. Springer, Cham. https://doi.org/10.1007/430_2013_108

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