对一种长链非离子表面活性剂胶束结构的核磁共振（nmr）研究。

A nuclear magnetic resonance (nmr) investigation of the micellar structure of a long-chain non-ionic surfactant.

作者信息

Elworthy P H, Patel M S

出版信息

J Pharm Pharmacol. 1984 Sep;36(9):565-8. doi: 10.1111/j.2042-7158.1984.tb04898.x.

DOI:10.1111/j.2042-7158.1984.tb04898.x

Abstract

Peak integrals, peak widths at half-height (delta nu 1/2), spin-lattice relaxation times (T1), and chemical shifts (delta) of the alkyl and oxyethylene protons of CH3(CH2)21[OCH2CH2]27OH (C22E27) were measured in D2O at various temperatures. The peak integrals, delta nu 1/2, and delta values of the alkyl protons showed a large dependence on temperature below 313K, while the values for the oxyethylene protons were unaffected by temperature. These observations were explained by considering an intrusion of some oxyethylene groups into the hydrocarbon core of the micelle.

摘要

在不同温度下，于重水（D₂O）中测量了CH₃(CH₂)₂₁[OCH₂CH₂]₂₇OH（C₂₂E₂₇）的烷基和氧乙烯质子的峰积分、半高宽（δν 1/2）、自旋晶格弛豫时间（T₁）以及化学位移（δ）。低于313K时，烷基质子的峰积分、δν 1/2和δ值对温度有很大依赖性，而氧乙烯质子的值不受温度影响。通过考虑一些氧乙烯基团侵入胶束的烃核来解释这些观察结果。