Issue 19, 2011
From the journal:

Soft Matter

Zinc modified polydiacetylene Langmuir films

Yevgeniy Lifshitz,†a   Alexander Upcher,†a   Anatoly Kovalev,d   Dmitry Wainstein,d   Alexander Rashkovsky,d   Leila Zeiri,c   Yuval Golan*a  and  Amir Berman*b  

* Corresponding authors

a Materials Engineering Department and Ilse Katz Institute for Nanoscale Science and Technology, Ben Gurion University of the Negev, Beer-Sheva, Israel
E-mail: ygolan@bgu.ac.il

b Biotechnology Engineering Department, National Institute for Biotechnology, Negev (NIBN) and Ilse Katz Institute for Nanoscale Science and Technology, Ben Gurion University of the Negev, Beer-Sheva, Israel
E-mail: aberman@bgu.ac.il

c Chemistry Department and Ilse Katz Institute for Nanoscale Science and Technology, Ben Gurion University of the Negev, Beer-Sheva, Israel

d Surface Phenomena Research Group, Physical Metallurgy Institute, CNIICHERMET, off. 475, 2nd Baumanskaya 9/23, Moscow, Russia

Abstract

Polydiacetylene (PDA) Langmuir films (LF) containing Zn2+ cations were prepared in different experimental procedures. The incorporation of zinc cations resulted in new morphological and spectral properties. We found that zinc cations stabilize the blue phase of PDA, and inhibit its transformation into the red phase, withstanding prolonged exposure to UV irradiation. The increased stability was accompanied with the loss of the linear strand morphology and appearance of a new, transient purple phase before the final red phase stage. It was found that the most significant differences in film properties occur when the zinc cations are already present in solution during the polymerization stage at sufficient concentration. In such case zinc ions penetrate into the headgroup interlayer in the trilayer organization, and are implicated in the film's chromatic properties. In cases where polymerization was carried out prior to introduction of the cations, the properties of PDA/Zn2+ films are similar to films produced on a pure water subphase.

Graphical abstract: Zinc modified polydiacetylene Langmuir films

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C1SM05904A
Article type
Paper
Submitted
16 May 2011
Accepted
28 Jun 2011
First published
11 Aug 2011

Soft Matter, 2011,7, 9069-9077

Permissions

Request permissions

Zinc modified polydiacetylene Langmuir films

Y. Lifshitz, A. Upcher, A. Kovalev, D. Wainstein, A. Rashkovsky, L. Zeiri, Y. Golan and A. Berman, Soft Matter, 2011, 7, 9069 DOI: 10.1039/C1SM05904A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements