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- Sarker Ashim Kumer
- Faculty of Environmental Science and Technology, Okayama University
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- Kimura Kunio
- Faculty of Environmental Science and Technology, Okayama University
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- Yamashita Yuhiko
- Faculty of Environmental Science and Technology, Okayama University
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抄録
An influence of solvent on morphology as well as growth mechanism of poly(p-oxybenzoyl) whisker in paraffin wax (PW) was studied comparing with those in liquid paraffin (LPF). Furthermore, the condition for consecutive addition of oligomer was also examined to lengthen the whiskers in PW. Polymerizations of p-acetoxybenzoic acid were carried out in PW and LPF at 330°C. Larger number of whiskers having smaller length and width were formed in PW compared with that in LPF. PW was a poorer solvent than LPF and this lower miscibility leaded to the crystallization of lower DPn oligomers. Additionally, formation rate of oligomer was bigger in PW than LPF. These facts resulted in the higher degree of super saturation of oligomers which generated a larger number of nuclei having smaller size. Since the length was determined by the number of nuclei and the yield, the length eventually became shorter. On the basis of the formation mechanism of the whisker in PW, oligomers were added into polymerization system to lengthen the whisker. When oligomers were added to compensate the consumed oligomers while the tip angle was constantly kept at 80°C, the steady growth period was expanded and the length increased from 13.4 μm to 22.1μm.
収録刊行物
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- Polymer Journal
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Polymer Journal 34 (6), 426-436, 2002
The Society of Polymer Science, Japan
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詳細情報 詳細情報について
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- CRID
- 1390001206288815872
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- NII論文ID
- 130004430416
- 10012290265
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- NII書誌ID
- AA00777013
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- COI
- 1:CAS:528:DC%2BD38XltVyrsr0%3D
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- ISSN
- 13490540
- 00323896
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- NDL書誌ID
- 6208399
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可