2003年8月
Preparation of needle-like poly(azomethine) crystals by means of reaction-induced crystallization of oligomers
POLYMER
- ,
- ,
- ,
- 巻
- 44
- 号
- 17
- 開始ページ
- 4761
- 終了ページ
- 4764
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/S0032-3861(03)00448-8
- 出版者・発行元
- ELSEVIER SCI LTD
Needle-like poly(azomethine) crystals were successfully prepared by the polycondensation of 1,4-phenylenediamine and 1,4-terephthalaldehyde, in liquid paraffin at 180 degreesC. The favorable polymerization concentration for the preparation of the well-defined needle-like crystals was 2.0 x 10(-2) mol l(-1). The average length and width of the needle-like crystals were 7.7 and 0.6 mum, respectively. These crystals possessed high crystallinity and good thermal stability. The extended polymer chains were aligned along the long axis of the needle-like crystal. The morphological observations indicated that the needle-like crystals were formed through the spiral growth of the oligomer lamellae caused by the screw dislocation. (C) 2003 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/S0032-3861(03)00448-8
- ISSN : 0032-3861
- Web of Science ID : WOS:000184351500001