{"created":"2021-03-01T06:16:32.949704+00:00","id":14,"links":{},"metadata":{"_buckets":{"deposit":"60ca3a1f-de76-46a6-82d9-5ca2ea5c64aa"},"_deposit":{"id":"14","owners":[],"pid":{"revision_id":0,"type":"depid","value":"14"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00000014","sets":["6:7:8","9:10:11"]},"item_2_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-09-21","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3-4","bibliographicPageEnd":"316","bibliographicPageStart":"307","bibliographicVolumeNumber":"181","bibliographic_titles":[{"bibliographic_title":"Applied surface science : a journal devoted to the properties of interfaces in relation to the synthesis and behaviour of materials"}]}]},"item_2_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Self-assembled 3-mercaptopropyltrimethoxysilane (MPTMS, (CH3O)3SiCH2CH2CH2 SH) layers on hydroxyl-terminated silicon oxide (SiO2) were prepared at MPTMS concentrations ranging from 5 × 10-3 to 4 × 10-2M. The surface structure and morphology of MPTMS layers were characterized by X-ray photoelectron spectroscopy (XPS), contact angle measurements, scanning electron microscopy (SEM), and atomic force microscopy (AFM). We found that the MPTMS layers on SiO2 consisted of dispersed domains 20-200nm in diameter, instead of continuous, flat monolayers. With increasing MPTMS concentration, the domain shape changed from flat to steep. Flat domains were composed of well-ordered monolayers with thiol headgroups uniformly distributed on the uppermost surface, whereas steep domains were composed of disordered polymers with randomly distributed thiol headgroups on the uppermost surface. These results indicate that MPTMS molecules show good self-assembly at an MPTMS concentration of 5 × 10-3M, but not above this concentration. The effect of MPTMS concentration on the structure and morphology of MPTMS layers might be due to the competition between self-polymerization and surface dehydration reactions, which depends on the trace quantity of water in the solvent and on the SiO2 surface. Our research further indicates that MPTMS and water concentrations are the controlling parameters for preparing well-ordered, self-assembled MPTMS monolayers on SiO2.","subitem_description_type":"Abstract"}]},"item_2_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"61","nameIdentifierScheme":"WEKO"}],"names":[{"name":"野田, 優"}]},{"nameIdentifiers":[{"nameIdentifier":"62","nameIdentifierScheme":"WEKO"}],"names":[{"name":"大久保, 達也"}]},{"nameIdentifiers":[{"nameIdentifier":"63","nameIdentifierScheme":"WEKO"}],"names":[{"name":"山口, 由岐夫"}]},{"nameIdentifiers":[{"nameIdentifier":"64","nameIdentifierScheme":"WEKO"}],"names":[{"name":"小宮山, 宏"}]}]},"item_2_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_2_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA10503400","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"01694332","subitem_source_identifier_type":"ISSN"}]},"item_2_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"431.1","subitem_subject_scheme":"NDC"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hu, Minghui"}],"nameIdentifiers":[{"nameIdentifier":"56","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Noda, Suguru"}],"nameIdentifiers":[{"nameIdentifier":"57","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Okubo, Tatsuya"}],"nameIdentifiers":[{"nameIdentifier":"58","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaguchi, Yukio"}],"nameIdentifiers":[{"nameIdentifier":"59","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Komiyama, Hiroshi"}],"nameIdentifiers":[{"nameIdentifier":"60","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-05-30"}],"displaytype":"detail","filename":"2001ASS_hu.pdf","filesize":[{"value":"496.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"2001ASS_hu.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/14/files/2001ASS_hu.pdf"},"version_id":"c88804c0-e01e-4dd3-b2a5-21544a57ed26"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Silica","subitem_subject_scheme":"Other"},{"subitem_subject":"Silicon oxide","subitem_subject_scheme":"Other"},{"subitem_subject":"Self assembly","subitem_subject_scheme":"Other"},{"subitem_subject":"Morphology","subitem_subject_scheme":"Other"},{"subitem_subject":"Surface treatment","subitem_subject_scheme":"Other"},{"subitem_subject":"Silanes","subitem_subject_scheme":"Other"},{"subitem_subject":"Monolayers","subitem_subject_scheme":"Other"},{"subitem_subject":"Dehydration","subitem_subject_scheme":"Other"},{"subitem_subject":"Polymerization","subitem_subject_scheme":"Other"},{"subitem_subject":"Concentration","subitem_subject_scheme":"Other"},{"subitem_subject":"X ray photoelectron spectroscopy","subitem_subject_scheme":"Other"},{"subitem_subject":"Scanning electron microscopy","subitem_subject_scheme":"Other"},{"subitem_subject":"Atomic force microscopy","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Structure and morphology of self-assembled 3-mercaptopropyltrimethoxysilane layers on silicon oxide","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Structure and morphology of self-assembled 3-mercaptopropyltrimethoxysilane layers on silicon oxide"}]},"item_type_id":"2","owner":"1","path":["11","8"],"pubdate":{"attribute_name":"公開日","attribute_value":"2006-02-06"},"publish_date":"2006-02-06","publish_status":"0","recid":"14","relation_version_is_last":true,"title":["Structure and morphology of self-assembled 3-mercaptopropyltrimethoxysilane layers on silicon oxide"],"weko_creator_id":"1","weko_shared_id":2},"updated":"2022-12-19T03:40:55.634960+00:00"}