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For the generic term poloxamer, these copolymers are commonly named with the letter P (for poloxamer) followed by three digits: the first two digits multiplied by 100 give the approximate molecular mass of the polyoxypropylene core, and the last digit multiplied by 10 gives the percentage polyoxyethylene content (e.g. P407 = poloxamer with a ...
The nominal chemical formula of P123 is HO(CH 2 CH 2 O) 20 (CH 2 CH(CH 3)O) 70 (CH 2 CH 2 O) 20 H, which corresponds to a molecular weight of around 5800 g/mol. Triblock copolymers based on PEO-PPO-PEO chains are known generically as poloxamer.
Poloxamer 407 is a hydrophilic non-ionic surfactant of the more general class of copolymers known as poloxamers.Poloxamer 407 is a triblock copolymer consisting of a central hydrophobic block of polypropylene glycol flanked by two hydrophilic blocks of polyethylene glycol (PEG).
Phenyltropanes (PTs) are a family of chemical compounds originally derived from structural modification of cocaine.The main feature differentiating phenyltropanes from cocaine is that they lack the ester functionality at the 3-position terminating in the benzene; and thusly the phenyl is attached direct to the tropane skeleton with no further spacer (therefore the name "phenyl"-tropane) that ...
15270 [184] RCR2 450–600 15: 27 Substitute for CR2 primary lithium. Nominal voltage usually is 3 V. 16340: RCR123A 550–800 [185] 16: 34 Alternate substitute for CR123A primary lithium. [186] Unprotected. (16 × 36, some protected versions [187]). 16650: 1,600–2,500 [188] 16: 65 Made by Sanyo and a few others, narrower version of 18650 ...
Co-danthramer is dantron plus poloxamer. It is (in the U.K.) only to be prescribed to terminally ill patients because of its carcinogenicity in rats. It is often prescribed to people taking long term opioid, because it relaxes the effect of opioid induced constipation. It will not alleviate the symptoms of opioid induced delayed gastric ...
184 003, the last locomotive of the 184 group that remained in active service, suffered damage to the battery charger in early January 2002; after a futile attempt to repair it at the Saarbrücken locomotive depot, it was shelved the following January 24 and disposed of on February 27 with a mileage of 3 297 346 km. [23] On March 1, 2002, it ...
Adhesives may be broadly divided in two classes: structural and pressure-sensitive. To form a permanent bond, structural adhesives harden via processes such as evaporation of solvent (for example, white glue), reaction with UV radiation (as in dental adhesives), chemical reaction (such as two part epoxy), or cooling (as in hot melt).