Construction of Self-Reporting Biodegradable CO2-Based Polycarbonates for the Visualization of Thermoresponsive Behavior with Aggregation-Induced Emission Technology was written by Wang, Molin;Wang, Enhao;Cao, Han;Liu, Shunjie;Wang, Xianhong;Wang, Fosong. And the article was included in Chinese Journal of Chemistry in 2021.Quality Control of 2-(2-Methoxyethoxy)ethanol This article mentions the following:
Thermoresponsive polymers with simultaneous biodegradability and signal “self-reporting” outputs that meet for advanced applications are hard to obtain. To address this issue, we developed fluorescence signal “self-reporting” biodegradable thermoresponsive polycarbonates through the immortal copolymerization of CO2 and oligoethylene glycol monomethyl ether-functionalized epoxides in the presence of hydroxyl-modified tetraphenylethylene (TPE-OH). TPE-OH was used as chain transfer agent to afford well-defined polycarbonates with controlled mol. weight (6000-17000 g·mol-1) and aggregation-induced emission characteristics. Through temperature-dependent fluorescence intensity study, low critical solution transition of TPE-labeled polycarbonates were determined and the fine details of thermal-induced phase transition process were monitored. Further research indicated that temperature-controlled aggregation and dissociation of TPE moieties are the main reason for fluorescence intensity variations. We anticipate that this work could offer a method to visualize the thermal transition process of thermoresponsive polycarbonates and broaden their application fields as smart materials. In the experiment, the researchers used many compounds, for example, 2-(2-Methoxyethoxy)ethanol (cas: 111-77-3Quality Control of 2-(2-Methoxyethoxy)ethanol).
2-(2-Methoxyethoxy)ethanol (cas: 111-77-3) belongs to ethers. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Quality Control of 2-(2-Methoxyethoxy)ethanol
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem