Earticle

초록

영어

Amphiphilic molecules self-assemble into various structures depending on the molecular architecture, hydrophilic/hydrophobic ratio and assembly methodologies.1)-4) Here, we report the structural transition of self-aggregates of a series of Poly(2-hydroxyethyl aspartamide) (PHEA) graftedwith dodecyl chains (PHEA-g-C12) with various degree of substitution (DS). Amphiphilic graft copolymers, PHEA-g-C12 with the different DS of C12, were simply prepared by aminolysis of the precursor polymer poly(succinimide) (PSI) with dodecylamine and ethanolamine. Synthesis and DS values were verified with 1H NMR spectra. Stable self-aggregates in aqueous media were successfully prepared by direct dissolution and characterized mainly in terms of size and structure by light scattering methods and visualized by transmission electron microscopy (TEM). Spherical micelles, wormlike micelles, tubule networks, and vesicles were observed.The structure is changed as a function of DS of hydrophobic dodecyl chain and can be explained in terms of packing parameter and interface energy. The tubular network system shows unique and interesting viscose behavior.

저자

• Hyun Jin Lee [ Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology ]
• Eun Jung An [ Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology ]
• Jong-Duk Kim [ Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576