{"created":"2023-05-15T12:20:53.568445+00:00","id":11609,"links":{},"metadata":{"_buckets":{"deposit":"6b0cdbc5-dba1-4731-a2bf-909a44095bee"},"_deposit":{"created_by":1,"id":"11609","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"11609"},"status":"published"},"_oai":{"id":"oai:kansai-u.repo.nii.ac.jp:00011609","sets":["528:1588:1595:1597"]},"author_link":["27586","27589","27587","27588"],"item_9_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"214","bibliographicPageStart":"199","bibliographicVolumeNumber":"60","bibliographic_titles":[{"bibliographic_title":"分析化学"}]}]},"item_9_description_4":{"attribute_name":"概要","attribute_value_mlt":[{"subitem_description":"マトリックス支援レーザー脱離イオン化質量分析法（MALDI-MS）や液体クロマトグラフィー大気圧化学イオン化質量分析法（LC-APCI-MS）を用いて，水系溶液におけるポリエチレンオキシド（PEO），ポリメタクリル酸メチル（PMMA），及びPEOとポリプロピレンオキシド（PPO）コポリマーの超音波分解の研究を行った．28kHzホーン型の低周波超音波装置を用いてそれぞれの高分子を超音波分解し，その照射時間による分子量分布の変化及び分解物の末端構造を詳細に解析した．その結果，平均分子量が異なる2,6,20,2000kDaのEOに対して，最終的には末端基の異なる5種類のオリゴマー分解物（分子量約1000Da）が生成し，\nそれらの分解経路を推定した．単分散PMMAの超音波分解では，キャビテーションによるOH・やH・の生成によるラジカル（化学）反応に加えて，キャビテーションバブルの崩壊による力学（物理）的な切断が高分子鎖の中央付近で起こることが示唆された．PEO-block-PPOの超音波分解では，分解生成物の詳細な構造解析から結合の最初の切断は，PEOとPPO鎖の結合部付近の主鎖で起こることが分かった．更に，酸素が付加した分解物が検出され，ヘリウム中の熱分解生成物との比較からその酸素源は水又は溶存酸素の可能性が示唆された．PEO-block-PPOの超音波分解は，力学的な切断だけでなくラジカル反応も関与していることが示された．","subitem_description_type":"Other"}]},"item_9_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"27588","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Arakawa, Ryuichi"}]},{"nameIdentifiers":[{"nameIdentifier":"27589","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kawasaki, Hideya"}]}]},"item_9_publisher_34":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本分析化学会"}]},"item_9_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00222633","subitem_source_identifier_type":"NCID"}]},"item_9_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"05251931","subitem_source_identifier_type":"ISSN"}]},"item_9_version_type_17":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"荒川, 隆一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"川崎, 英也"}],"nameIdentifiers":[{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-05-23"}],"displaytype":"detail","filename":"KU-1100-20111214-01.pdf","filesize":[{"value":"3.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KU-1100-20111214-01.pdf","url":"https://kansai-u.repo.nii.ac.jp/record/11609/files/KU-1100-20111214-01.pdf"},"version_id":"bafbfcc9-7c33-479d-bc21-d07bd525a59e"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"超音波分解を利用した合成高分子の質量分析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"超音波分解を利用した合成高分子の質量分析"}]},"item_type_id":"9","owner":"1","path":["1597"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-01-26"},"publish_date":"2012-01-26","publish_status":"0","recid":"11609","relation_version_is_last":true,"title":["超音波分解を利用した合成高分子の質量分析"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-05-15T14:41:19.629696+00:00"}