دورية
Comparison of Oligo(ethylene glycol)alkanethiols versus n-Alkanethiols: Self-Assembly, Insertion, and Functionalization
| العنوان: | Comparison of Oligo(ethylene glycol)alkanethiols versus n-Alkanethiols: Self-Assembly, Insertion, and Functionalization |
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| المؤلفون: | Shuster, Mitchell J., Vaish, Amit, Gilbert, Megan L., Martinez-Rivera, Michelle, Nezarati, Roya M., Weiss, Paul S., Andrews, Anne M. |
| المصدر: | The Journal of Physical Chemistry - Part C; December 2011, Vol. 115 Issue: 50 p24778-24787, 10p |
| مستخلص: | We describe the self-assembly and chemical functionalization of oligo(ethylene glycol)alkanethiol (OEG) molecules. Insertion of OEGs into n-alkanethiolate monolayer matrices depends considerably on terminal functionality, unlike insertion of n-alkanethiols. Thus, inserted fractions of OEGs cannot be inferred from related systems, yet tuning, to some extent, is possible by controlling insertion parameters. Furthermore, while the in situ reactivities of dilute inserted carboxy- or amine-terminated OEGs versus n-alkanethiols protruding from the surrounding matrix are similar in amide bond formation reactions, complete monolayers of OEGs react to a greater extent compared to n-alkanethiols with similar terminal functionalities. We interpret these differences in terms of the reduced crystalline packing of terminal ethylene glycol groups of OEGs. |
| قاعدة البيانات: | Supplemental Index |
| تدمد: | 19327447 19327455 |
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| DOI: | 10.1021/jp207396m |