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Scattering Form Factor of Block Copolymer Micelles with Corona Chains Discretely Distributed on the Core Surface.
The Journal of Physical Chemistry B ( IF 2.8 ) Pub Date : 2020-06-24 , DOI: 10.1021/acs.jpcb.0c04120
Rintaro Takahashi 1 , Shota Fujii 1 , Isamu Akiba 1 , Kazuo Sakurai 1
Affiliation  

Small-angle scattering is a powerful tool to investigate micellar structure, and a model form factor proposed by Pedersen and Gerstenberg [Pedersen, J. S.; Gerstenberg, M. Macromolecules1996, 29, 1363–1365] has been used quite frequently to analyze experimentally obtained scattering data of block copolymer micelles. Their model consists of a spherical core and the Gaussian corona chains attached to the core surface; the corona chains are considered to be approximately continuously (evenly) distributed on the core surface. In this paper, we present a micellar form factor model in which the corona chains are discretely distributed on the core surface. Our proposed discrete model was found to deviate from the Pedersen–Gerstenberg model as well as another model [Svaneborg, C.; Pedersen, J. S. Phys. Rev. E2001, 64, R01802.], which incorporates the approximate interference effect between the corona chains, in conditions in which the scattering from the corona chains is stronger than that from a core with lower number density of the corona chains.

中文翻译:

芯表面上离散分布有电晕链的嵌段共聚物胶束的散射形状因子。

小角散射是研究胶束结构的有力工具,也是Pedersen和Gerstenberg提出的模型形状因子[Pedersen,JS; 盖尔斯滕贝格,M.大分子199629(1363-1365),已经非常频繁地用于分析实验获得的嵌段共聚物胶束的散射数据。他们的模型由球形核和附着在核表面的高斯电晕链组成。电晕链被认为大致连续(均匀)地分布在芯表面上。在本文中,我们提出了一种胶束形状因子模型,其中电晕链离散地分布在核心表面上。我们提出的离散模型被发现偏离了Pedersen-Gerstenberg模型以及其他模型[Svaneborg,C .; Pedersen,JS物理学。启ê 2001年64,R01802。],其结合了电晕链之间的近似干扰效应,在这种情况下,电晕链的散射比电晕链数密度较低的核的散射强。
更新日期:2020-07-16
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