Preparation and properties of polyhedral oligomeric silsesquioxane-polysiloxane copolymers
All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane [(HSiO3/2)8, T8H] copolymers were synthesized by the dehydrogenative condensation of T8H with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followe...
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| Veröffentlicht in: | Applied organometallic chemistry 2010-08, Vol.24 (8), p.545-550 |
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| container_title | Applied organometallic chemistry |
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| creator | Gunji, Takahiro Shioda, Takahiro Tsuchihira, Koji Seki, Hiroyasu Kajiwara, Takashi Abe, Yoshimoto |
| description | All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane [(HSiO3/2)8, T8H] copolymers were synthesized by the dehydrogenative condensation of T8H with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followed by trimethylsilylation. Coating films were prepared by spin‐coating of the coating solutions prepared from the dehydrogenative condensation products. The hardness of the coating films was evaluated by a pencil hardness test and was found to increase up to 6H with increases in the curing temperature. Silica gels were prepared by concentrating the coating solution following by pyrolysis. These silica gels showed a specific surface area 449 m2/g at 650 °C corresponding to the formation of a silica network in response to combustion of the phenyl groups. Copyright © 2009 John Wiley & Sons, Ltd.
All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane copolymers were synthesized by the dehydrogenative condensation of octahydrido octasilsesquioxane with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followed by trimethylsilylation. |
| doi_str_mv | 10.1002/aoc.1562 |
| format | Article |
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All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane copolymers were synthesized by the dehydrogenative condensation of octahydrido octasilsesquioxane with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followed by trimethylsilylation.</description><identifier>ISSN: 0268-2605</identifier><identifier>ISSN: 1099-0739</identifier><identifier>EISSN: 1099-0739</identifier><identifier>DOI: 10.1002/aoc.1562</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Coating ; Condensates ; Copolymers ; Dehydrogenation ; dehydrogenative condensation ; diethylhydroxylamine ; diphenylsilanediol ; Hardness tests ; Pencils ; polyhedral oligomeric silsesquioxane ; Pyrolysis ; Silica gel</subject><ispartof>Applied organometallic chemistry, 2010-08, Vol.24 (8), p.545-550</ispartof><rights>Copyright © 2009 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4012-8b9f4bce5c354170d6937c4a39a6cf68c75fc7155092eafde10a5a7b28d46bd33</citedby><cites>FETCH-LOGICAL-c4012-8b9f4bce5c354170d6937c4a39a6cf68c75fc7155092eafde10a5a7b28d46bd33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Faoc.1562$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Faoc.1562$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Gunji, Takahiro</creatorcontrib><creatorcontrib>Shioda, Takahiro</creatorcontrib><creatorcontrib>Tsuchihira, Koji</creatorcontrib><creatorcontrib>Seki, Hiroyasu</creatorcontrib><creatorcontrib>Kajiwara, Takashi</creatorcontrib><creatorcontrib>Abe, Yoshimoto</creatorcontrib><title>Preparation and properties of polyhedral oligomeric silsesquioxane-polysiloxane copolymers</title><title>Applied organometallic chemistry</title><addtitle>Appl. Organometal. Chem</addtitle><description>All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane [(HSiO3/2)8, T8H] copolymers were synthesized by the dehydrogenative condensation of T8H with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followed by trimethylsilylation. Coating films were prepared by spin‐coating of the coating solutions prepared from the dehydrogenative condensation products. The hardness of the coating films was evaluated by a pencil hardness test and was found to increase up to 6H with increases in the curing temperature. Silica gels were prepared by concentrating the coating solution following by pyrolysis. These silica gels showed a specific surface area 449 m2/g at 650 °C corresponding to the formation of a silica network in response to combustion of the phenyl groups. Copyright © 2009 John Wiley & Sons, Ltd.
All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane copolymers were synthesized by the dehydrogenative condensation of octahydrido octasilsesquioxane with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followed by trimethylsilylation.</description><subject>Coating</subject><subject>Condensates</subject><subject>Copolymers</subject><subject>Dehydrogenation</subject><subject>dehydrogenative condensation</subject><subject>diethylhydroxylamine</subject><subject>diphenylsilanediol</subject><subject>Hardness tests</subject><subject>Pencils</subject><subject>polyhedral oligomeric silsesquioxane</subject><subject>Pyrolysis</subject><subject>Silica gel</subject><issn>0268-2605</issn><issn>1099-0739</issn><issn>1099-0739</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp10E9LwzAYBvAgCs4p-BF600tn_jRJcxxFpzCch8lkl5CmqUa7pUs63L69qRPBg6eX5-XHy8sDwCWCIwQhvlFOjxBl-AgMEBQihZyIYzCAmOUpZpCegrMQ3iGEgqFsAJZP3rTKq866daLWVdJ61xrfWRMSVyeta_ZvpvKqSVxjX93KeKuTYJtgwmZr3U6tTdqjuPoOiXZ9jC6cg5NaRXjxM4fg-e52Xtyn09nkoRhPU51BhNO8FHVWakM1oRnisGKCcJ0pIhTTNcs1p7XmiFIosFF1ZRBUVPES51XGyoqQIbg63I2vb7YmdHJlgzZNE99x2yBzwTAUFIsorw9SexeCN7VsvV0pv5cIyr49GduTfXuRpgf6aRuz_9fJ8az4623ozO7XK_8hGSecysXjRM6LlyXni6lcki8zBIKn</recordid><startdate>201008</startdate><enddate>201008</enddate><creator>Gunji, Takahiro</creator><creator>Shioda, Takahiro</creator><creator>Tsuchihira, Koji</creator><creator>Seki, Hiroyasu</creator><creator>Kajiwara, Takashi</creator><creator>Abe, Yoshimoto</creator><general>John Wiley & Sons, Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>201008</creationdate><title>Preparation and properties of polyhedral oligomeric silsesquioxane-polysiloxane copolymers</title><author>Gunji, Takahiro ; Shioda, Takahiro ; Tsuchihira, Koji ; Seki, Hiroyasu ; Kajiwara, Takashi ; Abe, Yoshimoto</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4012-8b9f4bce5c354170d6937c4a39a6cf68c75fc7155092eafde10a5a7b28d46bd33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Coating</topic><topic>Condensates</topic><topic>Copolymers</topic><topic>Dehydrogenation</topic><topic>dehydrogenative condensation</topic><topic>diethylhydroxylamine</topic><topic>diphenylsilanediol</topic><topic>Hardness tests</topic><topic>Pencils</topic><topic>polyhedral oligomeric silsesquioxane</topic><topic>Pyrolysis</topic><topic>Silica gel</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gunji, Takahiro</creatorcontrib><creatorcontrib>Shioda, Takahiro</creatorcontrib><creatorcontrib>Tsuchihira, Koji</creatorcontrib><creatorcontrib>Seki, Hiroyasu</creatorcontrib><creatorcontrib>Kajiwara, Takashi</creatorcontrib><creatorcontrib>Abe, Yoshimoto</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied organometallic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gunji, Takahiro</au><au>Shioda, Takahiro</au><au>Tsuchihira, Koji</au><au>Seki, Hiroyasu</au><au>Kajiwara, Takashi</au><au>Abe, Yoshimoto</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and properties of polyhedral oligomeric silsesquioxane-polysiloxane copolymers</atitle><jtitle>Applied organometallic chemistry</jtitle><addtitle>Appl. Organometal. Chem</addtitle><date>2010-08</date><risdate>2010</risdate><volume>24</volume><issue>8</issue><spage>545</spage><epage>550</epage><pages>545-550</pages><issn>0268-2605</issn><issn>1099-0739</issn><eissn>1099-0739</eissn><abstract>All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane [(HSiO3/2)8, T8H] copolymers were synthesized by the dehydrogenative condensation of T8H with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followed by trimethylsilylation. Coating films were prepared by spin‐coating of the coating solutions prepared from the dehydrogenative condensation products. The hardness of the coating films was evaluated by a pencil hardness test and was found to increase up to 6H with increases in the curing temperature. Silica gels were prepared by concentrating the coating solution following by pyrolysis. These silica gels showed a specific surface area 449 m2/g at 650 °C corresponding to the formation of a silica network in response to combustion of the phenyl groups. Copyright © 2009 John Wiley & Sons, Ltd.
All siloxane‐type siloxane–polyhedral oligomeric silsesquioxane copolymers were synthesized by the dehydrogenative condensation of octahydrido octasilsesquioxane with diphenylsilanediol, tetraphenyldisiloxane‐1,3‐diol or silanol‐terminated polydimethylsiloxanes in the presence of diethylhydroxylamine followed by trimethylsilylation.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/aoc.1562</doi><tpages>6</tpages></addata></record> |
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| ispartof | Applied organometallic chemistry, 2010-08, Vol.24 (8), p.545-550 |
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| source | Wiley Online Library - AutoHoldings Journals |
| subjects | Coating Condensates Copolymers Dehydrogenation dehydrogenative condensation diethylhydroxylamine diphenylsilanediol Hardness tests Pencils polyhedral oligomeric silsesquioxane Pyrolysis Silica gel |
| title | Preparation and properties of polyhedral oligomeric silsesquioxane-polysiloxane copolymers |
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