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二甲基亚砜添加对Triton X/水体系六方相的影响。

Effect of DMSO Addition on the Hexagonal Phase of the System Triton X/Water.

作者信息

Thieghi Leila T, Alves Sarah I P M N

机构信息

Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP 09913-030, Brasil.

出版信息

Langmuir. 2024 Oct 22;40(42):21985-21994. doi: 10.1021/acs.langmuir.4c01937. Epub 2024 Oct 11.

DOI:10.1021/acs.langmuir.4c01937
PMID:39392386
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11500494/
Abstract

This research studied the role of DMSO in a binary system of Triton X and water in the hexagonal mesophase. One effect of DMSO addition, determined using polarized optical microscopy and small-angle X-ray scattering measurements, is to promote a decrease in the hexagonal to isotropic phase transition temperature, , decreasing the range of temperatures of the hexagonal phase until the hexagonal phase completely disappears when DMSO is added up to 5.0 mol %. The periodicity and the lattice parameter of the hexagonal arrangement, calculated as a function of DMSO concentration, slight increased due to the insertion of DMSO molecules in the water region, causing a greater distance between the cylindrical micelles, while the radius of the apolar domains kept constant at 22 (1) Å.

摘要

本研究考察了二甲基亚砜（DMSO）在Triton X与水的二元体系形成六方中间相过程中的作用。通过偏光显微镜和小角X射线散射测量确定，添加DMSO的一个作用是促使六方相向各向同性相转变温度降低，随着DMSO添加量增加至5.0摩尔%，六方相的温度范围减小，直至六方相完全消失。六方排列的周期和晶格参数作为DMSO浓度的函数进行计算，由于DMSO分子插入水区域，导致圆柱形胶束之间的距离增大，使得其略有增加，而非极性区域的半径保持在22（1）Å不变。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/f96eb0a1595d/la4c01937_0015.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/ceed340d317b/la4c01937_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/f7e63b1b1149/la4c01937_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/25610306579f/la4c01937_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/e4987f8a15d1/la4c01937_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/704f2ae73c31/la4c01937_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/5da94515b913/la4c01937_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/b8f301ad9507/la4c01937_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/056a46b143c4/la4c01937_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/b71a0d7421b4/la4c01937_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/3dc4f5c3c951/la4c01937_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/3edfeaf0d565/la4c01937_0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/0b7cc5f56c74/la4c01937_0012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/21aba1659567/la4c01937_0013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fe17/11500494/f96eb0a1595d/la4c01937_0015.jpg

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本文引用的文献

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