Biocatalytic Synthesis of Multi‐block Copolymer Composed of Poly(tetrahydrofuran) and Poly(ethylene oxide)

Poly(ethylene glycol)-poly(tetrahydrofuran)-poly(ethylene glycol) triblock copolymer : Synthesis, crystallization behavior and novel morphology

“…One is to utilize chemical reaction to couple the hydroxyl-terminated PEO and PTHF segments [33][34][35], and the other one is to terminate the cationic polymerization of THF by methoxypolyethylene glycols [36,37]. However, none of them can be regarded as the ideal synthetic strategies to prepare a qualified copolymer, typically, with a well-defined Table 1.…”

Facile Generation of Polymer–Alloy Hybrid Layers for Dendrite‐Free Lithium‐Metal Anodes with Improved Moisture Stability

“…In the Li + deposition of pristine Li (Figure b) and treated Li with PTMEG–Li/Sn alloy hybrid layers (Figure c), after long cycles, many dendrites and dead Li are observed for the pristine Li, whereas the treated Li presents a smooth and compact deposition of Li + . Moreover, PTMEG, unlike PEO and PDOL, shows significant hydrophobicity because of a higher content of alkyl chains in the skeleton (see Figure S1 in the Supporting Information) . Therefore, PTMEG–Li/Sn‐alloy‐protected lithium metal exhibits improved air stability even in a moist environment.…”

Dexamethasone‐conjugated polyethylenimine as an efficient gene carrier with an anti‐apoptotic effect to cardiomyocytes

“…The CMC of PEI‐Dexa was determined by the fluorescence of pyrene monomer 25, 26. The CMC value of PEI‐Dexa was observed to be 1.2 mg/ml.…”

“…The critical micelle concentration (CMC) of PEI‐Dexa was determined by the fluorescence of pyrene monomer 25, 26. A stock solution of pyrene (6 × 10 −6 M) was prepared in acetone and added to deionized water to give a pyrene concentration of 6 × 10 −7 M. The solution was heated at 65 °C for 3 h to evaporate acetone from the solution and stored at 5 °C for 24 h. Then, the acetone‐free pyrene solution was mixed with the same volume of PEI‐Dexa solution.…”