초록 |
Recently, the development of directly writable techniques for depositing functional materials on solid substrates has received great attention. These pen-on-paper approaches enable generation of diverse patterned images on solid substrates in a flexible, easy handling and inexpensive manner. Herein, we describe the development of a directly writable, stimulus-responsive, conjugated polymer. Mechanically drawable colorimetric polydiacetylene (PDA)-wax composites were readily fabricated by using a simple mixing-molding method. Images mechanically drawn on a paper substrate, using the PDA-wax composites, display thermochromism and mechanothermochromism. The thermochromic transition temperature was dependent on the melting point of the wax and, as a result, could be precisely controlled by the type of wax used. |