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  Morphology of heterogeneous latex particles investigated by atomic force microscopy

Gerharz, B., Momper, B., & Butt, H.-J. (1996). Morphology of heterogeneous latex particles investigated by atomic force microscopy. Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1996. doi:10.1007/BFb0115759.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0007-5986-E 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0007-5E52-4
資料種別: 会議論文

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 作成者:
Gerharz, B.1, 著者
Momper, B.1, 著者
Butt, Hans-Jürgen2, 著者           
所属:
1Abteilung F + E PM I, Hoechst AG, Frankfurt, Germany, ou_persistent22              
2Department of Biophysical Chemistry, Max Planck Institute of Biophysics, Max Planck Society, ou_2068289              

内容説明

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キーワード: Emulsion polymerization; heterogeneous latexes; morphology; AFM-MFFT
 要旨: To investigate the morphology of individual latex particles with the atomic force microscope the particles were adsorbed onto mica and then dried. During adsorption and subsequent drying the packing of the particles is probably mainly determined by capillary forces, their deformation is caused by van der Waals forces. The shape of the particles on the mica surface depends on their original morphology and their viscoelastic properties. Chemically and also morphologically heterogeneous latex particles with therefore different viscoelastic properties were examined in comparison to the corresponding homogeneous latexes.

In addition, films formed with the latex particles were imaged to correlate the structure of individual particles with that of the film surface.

With the AFM it is possible to examine the morphology, size and viscoelastic inhomogenities of latex particles and thereby deduce their behavior during film formation. The particles examined here were on the monomer basis of n-butylacrylate and methylmethacrylate.

To compare the morphology of single particles with the surface structure of the corresponding films, we have chosen two different heterogeneous particles: For sample COM 1, we assumed a core-shell morphology, for sample COM 2 a hemispherical particle form. The morphology assumptions were based on studies which compare the minimum film formation temperatures with the glass transition temperatures of the different particle phases and their mass fractions. The results observed by the heterogeneous particles were compared to the corresponding homogeneous ones. Both composite particles exhibit the speculated morphology and, consequently, the expected properties after film formation.

資料詳細

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言語: eng - English
 日付: 2007-12-031996
 出版の状態: 出版
 ページ: 5
 出版情報: -
 目次: -
 査読: 査読あり
 識別子（DOI, ISBNなど）: DOI: 10.1007/BFb0115759
 学位: -

関連イベント

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イベント名: Proceedings of the IXth annual meeting of the European Colloid and Interface Society (ECIS)
開催地: Barcelona, Spain
開始日・終了日: 1995-09 - 1995-09

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出版物 1

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出版物名: Progress in Colloid & Polymer Science
  その他 : Trends in Colloid and Interface Science X
  副タイトル : Space Solar Physics
種別: 連載記事
 著者・編者:
Solans , C., 編集者
Infante , M.R., 編集者
García-Celma , M.J., 編集者
所属:
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出版社, 出版地: Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1996
ページ: 367 巻号: 100 通巻号: - 開始・終了ページ: 91 - 95 識別子（ISBN, ISSN, DOIなど）: ISBN: 978-3-7985-1056-2
ISBN: 978-3-7985-1665-6