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The storage modulus of PA9-T is retained at up to 60 degrees C with increasing humidity, then dropped with further increases in temperature past 70 degrees C. The decrease in mechanical properties at 70 degrees C due to moisture uptake is found to be substantially improved by annealing to develop molecular packing and/or crystallization. In contrast, the storage modulus of very highly crystallized (50% crystallinity) nylon 6 decreases markedly with humidity at low temperatures such as 20 degrees C. Thus, PA9-T retains its mechanical properties in humid atmospheres at much higher temperatures than nylon 6. The crystalline X-ray diffraction peaks for nylon 6 corresponding to (002) + (202) of the a form shift upon absorption of moisture, speculated to be due to the weakening of hydrogen bonds and the subsequent conformational disordering of the chains. Unlike nylon 6, the crystalline peaks of PA9-T do not shift due to moisture uptake. This is considered to be attributable to that the long aliphatic chain in PA9-T forms the large hydrophobic domain, rendering PA9-T less hygroscopic than nylon 6. Additionally, strong hydrogen bonds formed by terephthalamide residues together with a strong stacking force of phenylene groups may also repel water, preventing moisture bind with the amide groups of PA9-T crystals. (c) 2005 Wiley Periodicals, Inc."}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Uddin, AJ"}], "nameIdentifiers": [{"nameIdentifier": "41340", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Gotoh, Y"}], "nameIdentifiers": [{"nameIdentifier": "41341", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ohkoshi, Y"}], "nameIdentifiers": [{"nameIdentifier": "41342", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nagura, M"}], "nameIdentifiers": [{"nameIdentifier": "41343", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Endo, R"}], "nameIdentifiers": [{"nameIdentifier": "41344", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hara, T"}], "nameIdentifiers": [{"nameIdentifier": "41345", "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": "2015-09-28"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "Hydration in a New Semiaromatic Polyamide.pdf", "filesize": [{"value": "551.2 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 551200.0, "url": {"label": "Hydration in a New Semiaromatic Polyamide.pdf", "url": "https://soar-ir.repo.nii.ac.jp/record/13524/files/Hydration in a New Semiaromatic Polyamide.pdf"}, "version_id": "716f9358-c044-4d29-9c10-2c1d1a47cad3"}]}, "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": "Hydration in a new semiaromatic polyamide observed by humidity-controlled dynamic viscoelastometry and X-ray diffraction", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Hydration in a new semiaromatic polyamide observed by humidity-controlled dynamic viscoelastometry and X-ray diffraction", "subitem_title_language": "en"}]}, "item_type_id": "6", "owner": "1", "path": ["1310"], "permalink_uri": "http://hdl.handle.net/10091/1105", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-07-17"}, "publish_date": "2008-07-17", "publish_status": "0", "recid": "13524", "relation": {}, "relation_version_is_last": true, "title": ["Hydration in a new semiaromatic polyamide observed by humidity-controlled dynamic viscoelastometry and X-ray diffraction"], "weko_shared_id": -1}
Hydration in a new semiaromatic polyamide observed by humidity-controlled dynamic viscoelastometry and X-ray diffraction
http://hdl.handle.net/10091/1105
http://hdl.handle.net/10091/1105a4943e79-7369-4487-a8ef-62310265e8d2
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-07-17 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Hydration in a new semiaromatic polyamide observed by humidity-controlled dynamic viscoelastometry and X-ray diffraction | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Uddin, AJ
× Uddin, AJ× Gotoh, Y× Ohkoshi, Y× Nagura, M× Endo, R× Hara, T |
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信州大学研究者総覧へのリンク | ||||||
氏名 | Gotoh, Y | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.uVDmjekV.html | |||||
信州大学研究者総覧へのリンク | ||||||
氏名 | Ohkoshi, Y | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.jUkejekV.html | |||||
出版者 | ||||||
出版者 | JOHN WILEY & SONS INC | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS. 43(13): 1640-1648 (2005) | |||||
書誌情報 |
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 巻 43, 号 13, p. 1640-1648, 発行日 2005-07-01 |
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内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | This is a preprint of an article published in JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 2005; 43(13): 1640-1648 | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0887-6266 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10689160 | |||||
他の資源との関係:URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www3.interscience.wiley.com/journal/117932503/grouphome/home.html | |||||
関連名称 | http://www3.interscience.wiley.com/journal/117932503/grouphome/home.html | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1002/polb.20446 | |||||
関連名称 | 10.1002/polb.20446 | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
WoS | ||||||
表示名 | Web of Science | |||||
URL | http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000230023200008 |