Abstract
Octakistetramethylammonium octasilsesquioxane (Q TMA8 ) was synthesized from water glass (No. 3) by neutralization, extraction with tetrahydrofuran, and condensation reaction using tetramethylammonium hydroxide. Octakisdimethylsilyl octasilsesquioxane (Q DMS8 ) was synthesized by the reaction of Q TMA8 with chloro(dimethyl)silane. An all-siloxane-type cage-containing polymer was synthesized by the reaction of Q DMS8 with water by using diethylhydroxylamine as a catalyst. The reaction of Q DMS8 with diphenylsilanediol was carried out to provide oligomers. This reaction was carried out by the addition of Q DMS8 twice to isolate a cage-containing polymer with a weight-average molecular weight of 18,000.
Graphical Abstract
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Chujo Y, Tanaka K (2015) New polymeric materials based on element-blocks. Bull Chem Soc Jpn 88:633–643
Shioda T, Gunji T, Abe N, Abe Y (2011) Preparation and properties of polyhedral oligomeric silsesquioxane polymers. Appl Organom Chem 25:661–664
Gunji T, Shioda T, Tsuchihara K, Seki H, Kajiwara T, Abe Y (2010) Preparation and properties of poly oligomeric silsesquioxane/polysiloxane copolymers. Appl Organom Chem Soc 24:545–550
Tsukada S, Sekiguchi Y, Takai S, Abe Y, Gunji T (2015) Preparation of POSS derivatives by the dehydrogenative condensation of T H8 with alcohols. J Ceram Soc Jpn 123:739–743
Wada Y, Iyoki K, Sugawara-Narutaki A, Okubo T, Shimojima A (2013) Diol-linked microporous networks of cubic siloxane cages. Chem Eur J 19:1700–1705
Ueda N, Gunji T, Abe Y (2008) Synthesis of alkoxy octasilsesquioxanes by a convenient one-pot reaction. Mater Technol 26:162–169
Agaskar PA (1991) New synthetic route to the hydridospherosiloxanes O h -H8Si8O12 and D 5h -H10Si10O15. Inorg Chem 30:2707–2708
Feher FJ, Newman DA, Walzer JF (1989) Silsesquioxanes as models for silica surfaces. J Am Chem Soc 111:1741–1748
Provatas A, Luft M, Mu JC, White AH, Matisons JG, Skelton BW (1998) Silsesquioxanes: part I: a key intermediate in the building of molecular composite materials. J Organom Chem 565:159–164
Yoshimatsu M, Komori K, Ohnagamitsu Y, Sueyoshi N, Kawashima N, Chinen S, Murakami Y, Izumi J, Inoki D, Sakai K, Matsuo T, Watanabe K, Kunitake M (2012) Necklace-shaped dimethylsiloxane polymers bearing a polyhedral oligomeric silsesquioxane cage prepared by polycondensation and ring-opening polymerization. Chem Lett 41:622–624
Acknowledgments
This work was supported by a Grant-in-Aid for Scientific Research on Innovative Areas “New Polymeric Materials Based on Element-Blocks (No. 2401)” (24102008A02) from The Ministry of Education, Culture, Sports, Science, and Technology, Japan.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gunji, T., Igarashi, T., Tsukada, S. et al. Syntheses of cage octasilicate polymers. J Sol-Gel Sci Technol 81, 21–26 (2017). https://doi.org/10.1007/s10971-016-3998-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10971-016-3998-z