Effects of molecular architectures and solvophobic additives on the aggregative properties of polymeric surfactants

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題名:	Effects of molecular architectures and solvophobic additives on the aggregative properties of polymeric surfactants
作者:	曹恆光;Lin, Yung-Lung;Wu, Ming-Zher;Sheng, Yu-Jane;Tsao, Heng-Kwong
貢獻者:	工學院化學工程與材料工程學系
日期:	2012-03-14
上傳時間:	2026-04-21 13:52:57 (UTC+8)
出版者:	American Institute of Physics;United States: AIP Publishing
摘要:	摘要： The aggregative behavior of the polymeric surfactants with various molecular architectures in dilute solutions is studied by dissipative particle dynamics. The effects of the solvophobic/solvophilic length, polymeric architecture (linear, star, dendritic, and cyclic type), chain rigidity, and solvophobic additives on the critical micelle concentration (CMC) and the aggregative patterns are systematically investigated. It is found that molecular architectures have a noteworthy impact on the aggregative properties. For linear diblock copolymers, the CMC declines with increasing solvophobic length but rises with increasing solvophilic length. Nonetheless, the solvophobic group has comparatively greater influence on the CMC. Imposition of the star, dendritic, or cyclic structures onto the solvophobic or solvophilic parts of the polymeric surfactant leads to an increase in the CMC. On the contrary, polymers imposed with the greater degree of the rigidity on the solvophobic or solvophilic block have lower CMC. The addition of solvophobic additives results in a decrease of CMC as well. The effects of the concentration and length of the additives on the aggregative behaviors of polymer surfactants were investigated. Interesting supramolecular structures such as caterpillar and worm-like micelles were observed. 其他題名： J Chem Phys 出版者： United States: AIP Publishing 出版日期： 2012-03-14 出處： The Journal of Chemical Physics, 2012-03, Vol.136 (10), p.104905-104905-13 資源來源： AIP Publishing 版權： 2012 American Institute of Physics 識別號： ISSN: 0021-9606 識別號： ISSN: 1089-7690 識別號： EISSN: 1089-7690 識別號： DOI: 10.1063/1.3693514 識別號： PMID: 22423859 識別號： CODEN: JCPSA6
顯示於類別:	[化學工程與材料工程學系 ] 期刊論文

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