Assessing Polymer-Surface Adhesion with a Polymer Collection

Abstract

Polymer modification plays an important role in the construction of devices, but the lack of fundamental understanding on polymer-surface adhesion limits the development of miniaturized devices. In this work, a thermoplastic polymer collection was established using the combinatorial laser-induced forward transfer technique as a research platform, to assess the adhesion of polymers to substrates of different wettability. Furthermore, it also revealed the influence of adhesion on dewetting phenomena during the laser transfer and relaxation process, resulting in polymer spots of various morphologies. This gives a general insight into polymer-surface adhesion and connects it with the generation of defined polymer microstructures, which can be a valuable reference for the rational use of polymers.

Solid Ink Laser Patterning for High‐Resolution Information Labels with Supervised Learning Readout

“…Furthermore, the same transfer parameters (89 mW laser power, 4000 dpi resolution, laser on time 400 µs per dot) were used for all substrates and no pre‐treatments of the acceptor surfaces were performed. We selected commercially available PS due to its favorable properties, such as outstanding LIFT processability (largest material amounts transferred in our approach), [ 33 ] suitable hydrophobicity, glass transition temperature, low‐cost, and widespread use.…”

“…Future studies will also address the minimization of the delay time between the transfers of two spots, as well as further explore additional polymers for high‐resolution labels. We have previously shown that for example also polylactic acid, various copolymers, polyvinyl chloride, [ 33 ] or poly(dimethylacrylamide), [ 39 ] can be compatible with our process. A low‐cost version of the laser setup can enable this process in any lab.…”

“…[3] Although numerous methods for the generation of fluorescent labels are reported, based on for instance laser cutting, [4] direct laser the micro to millisecond range, to print different molecules embedded in a polymer (solid ink). Recent advances in our technology, such as theoretical process understanding, [32] compatibility with different polymers, [33,34] robotic automation for high-throughput chemical synthesis, [35] and a new nanolayer absorber for high resolution, [34] have enabled various different applications in biotechnology, chemistry, and materials research. In the previous work, we used the polyLIFT process to generate patterns of covalently attached fluorescent positional isomers for message encryption, using acid vapor as the key for decryption.…”

Metal-free photoanodes for C–H functionalization

“…During the CVD process, the state of the polymer matrix gradually changes as temperature increases. It becomes viscous above the glass transition temperature of 67.2 °C 39 , allowing diffusion similar to a solvent layer 40 , 41 , followed by its decomposition at about 400 °C (Fig. S 5 ), and the formation of a carbon skeleton (compare Fig.…”

Stimuli-Responsive Polymer-Based Nanosystems for Cancer Theranostics

“…Stimuli-responsive polymers have wide-ranging applications in various fields such as optics, , electronics, thermodynamics, mechanical systems, etc ., and have thus garnered significant attention from researchers. , Specific applications of these polymers include biosensing, adaptive surface adhesion, self-healing, drug delivery, etc . In the field of biology and medicine, biologically responsive materials play an important role in detecting and amplifying pathophysiological signals to aid early identification of diseases .…”