Sinopec Shanghai Petrochemical Company Limited, together with its subsidiaries, manufactures and sells petroleum and chemical products ... oxide , triethylene glycol , isoprene, isopentene ...

This structure has two helical chains each coiled round the same axis (see diagram). We have made the usual chemical assumptions, namely, that each chain consists of phosphate di-ester groups ...

College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China Inner Mongolia Engineering Research Center for CO2 Capture and Utilization, Hohhot 010051, China Key ...

No bowel preparation for colonoscopy achieves optimal efficacy and tolerability. Combining polyethylene glycol plus ascorbic acid (PEG-Asc) with adjuvants has been explored to enhance cleansing ...

While the presence and significance of melanin have long been accepted, its exact chemical makeup remains unclear. Melanin has an inherent diversity of structure and complexity, making understanding ...