Interactions between ionic liquid and fully zwitterionic copolymers probed using thermal analysis

Recent progress and perspectives in applications of 2-methacryloyloxyethyl phosphorylcholine polymers in biodevices at small scales

“…Thus, various MPC polymers with different molecular architectures, such as random, block, graft, and charged structures, have been developed for a wide range of macroscopic and microscopic applications. [9][10][11][12][13][14][15] Meanwhile, there is currently a trend to miniaturize biodevices that have a biocompatible property and use in biology and biomedicine, because small devices can be portable and simple to operate, provide high-throughput analysis, consume little energy, require less reagent use, and can be delivered or inserted into small target areas. [16][17][18][19][20] The length of such biodevices usually range from millimeters to nanometers.…”

“…Thus, various MPC polymers with different molecular architectures, such as random, block, graft, and charged structures, have been developed for a wide range of macroscopic and microscopic applications. 9–15…”

Interpolymer Complexes of Poly(methacryloyloxyethyl phosphorylcholine) and Polyacids

“…Interactions between poly(zwitterions) and polyelectrolytes can be studied by various methods [ 7 , 8 , 10 , 13 , 14 , 15 ]. However, there are still virtually no data about zwitterion-containing complexes formed only due to hydrogen bonding and hydrophobic interactions, although contributions of these types of bonds into stabilization of associates with proteins and polyelectrolytes have been mentioned.…”

Glass-Forming Ability of Polyzwitterions

“…In this study, the zwitterionic group is located on the side group. Polyzwitterions provide a unique means of investigating the strength of polymeric glass formers, as they only exist as a liquid or glassy solid with no known crystalline polyzwitterions. − They can also be synthesized with a wide variation in the flexibility of the backbone and side groups and the modulation of the size of the side groups . The large charge density of these polymers raises the intriguing question of how the presence of ions might influence the fragility of these polymers.…”

“…Due to the formation of the dipole–dipole physical cross-links, many polyzwitterions have exceptionally high glass transition temperatures that cannot be measured using conventional calorimetry due to the onset of thermal degradation. ,, Fast scanning calorimetry (FSC) has recently emerged as a powerful tool to minimize thermal degradation and observe thermal properties that have been unobservable using the slower rates found in conventional DSC. , By heating and cooling at rates on the order of 1000 K/s, thermal degradation can often be avoided and the sample can be reversibly heated and cooled . FSC has been shown to be as effective at measuring the fragility of a material as conventional methods such as rheology, dielectric relaxation, and DSC, while also being able to scan over a larger range of cooling rates. ,,,, …”