DataVXACS Applied Nano MaterialsPaper
journal article·2019-07-26

Low-Temperature Reversible Thermochromic Polydiacetylene/Zinc(II)/Zinc Oxide Nanocomposites for Colorimetric Sensing

Natthanon Phonchai, Chanita Khanantong, Filip Kielar, Rakchart Traiphol, Nisanart Traiphol

ACS Applied Nano Materials· Volume 2· Issue 7
Publisher page
Source abstract

Abstract

A series of reversible thermochromic polydiacetylene/zinc(II) ion/zinc oxide (PDA/Zn2+/ZnO) nanocomposites have been prepared using seven types of diacetylene monomer. The shortening of the PDA alkyl tail from 12 to 6 methylene units systematically decreases color-transition temperature (TCT) from 90 to 30 °C. Increasing the photopolymerization time during the preparation process further reduces the TCT down to 10 °C. The shortening of alkyl segment adjacent to PDA headgroup causes unpredictable changes of TCT. X-ray diffraction reveals variation of the molecular tilting angle within the bilayer structure of PDA depending on the length of alkyl segment. Infrared and Raman spectroscopies also detect the change of local interactions and backbone conformation within the nanocomposites. Our study provides a guideline for preparing reversible thermochromic materials with TCT ranging from 10 to 90 °C. These nanocomposite materials can be utilized in various applications such as colorimetric sensors, smart labels, and thermochromic inks/paints that change color in the hot, cold, or ambient conditions.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Polydiacetylene-based materials and applications · Ocular Surface and Contact Lens · Antimicrobial Peptides and Activities

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory of Advanced Chromic Materials, Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok 10300, Thailand

Faculty of Science and Technology, Nakhon Sawan Rajabhat University, Nakhon Sawan 60000, Thailand

Laboratory of Advanced Polymer and Nanomaterials, School of Materials Science and Innovation, Faculty of Science, Mahidol University at Salaya, Phuttamonthon 4 Road, Nakorn Pathom 73170, Thailand

Department of Chemistry and Center of Excellence in Biomaterials, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand

NANOTEC-MU Center of Excellence on Nanomaterials and Intelligence Systems, Nanocomposite, Nanosensor and Nanoelectronics, Faculty of Science, Mahidol University, Rama 6 Road, Ratchathewi, Bangkok 10400, Thailand

Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand

NANOTEC−CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand

Funding

National Nanotechnology Center · Thailand Research Fund

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