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Functionalization and application of ladder‐like polysilsesquioxanes
Author(s) -
Xie Ping,
Zhang Rongben
Publication year - 1997
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199711)8:11<649::aid-pat696>3.0.co;2-h
Subject(s) - materials science , silsesquioxane , polymer , surface modification , coating , hydrosilylation , layer (electronics) , polymerization , chemical engineering , composite material , polymer chemistry , organic chemistry , catalysis , engineering , chemistry
A series of highly ordered ladder‐like polysilsesquioxanes (LPS) has been synthesized via "stepwise coupling polymerization" in recent years. Among them some new kind of reactive polymers, such as polyhydrosilsesquioxane, polyvinyl (or allyl) silsesquioxane, polyethoxysilsesquioxane, etc. as parent polymers, can be further functionalized by hydrosilylation reaction as well as hydrolysis, thermal or photo‐crosslinking and group‐replacement reactions. New kinds of so‐called "fishbone‐like" and "rowboat‐like" liquid crystalline polymers and their corresponding metal complexes have been prepared and used as promising skeleton material to form a polymer–network liquid crystal display film and electroconductive film. Other potential applications include: thermostable glass‐like photopatternable film, insulation layer of semiconductor device, high‐performance protective coating material on the surface of single crystal, lens or integrated circuit with excellent laser‐damaged and environment resistance, organic/inorganic hybrid material supermolecular self‐assemblies, low decay, second harmonic generation, nonlinear optical polymer or other orientation film, as well as polymeric solid electrolyte polymeric auxilary agent and so on. © 1997 John Wiley & Sons, Ltd.