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单词 macrogol
释义

macrogoln.

Brit. /ˈmakrə(ʊ)ɡɒl/, U.S. /ˈmækrəˌɡɔl/, /ˈmækrəˌɡɑl/
Origin: Probably formed within English, by compounding. Etymons: macro- comb. form, glycol n.
Etymology: Probably < macro- comb. form + g- and -ol (in glycol n.).
Chemistry and Pharmacology.
Any of a series of water-soluble hydrophilic polymers having the general formula H—(O·CH2·CH2)n—OH), where n is 4 or greater.Frequently followed by a number denoting the average molecular weight of the polymer, as macrogol 1000.
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the world > matter > chemistry > polymer chemistry > polymers > [noun]
polymeride1857
polymer1866
macrogol1955
1954 Brit. Pharmaceut. Codex 1954 160 Cetomacrogol 1000 may be prepared by condensing cetyl or cetostearyl alcohol with ethylene oxide under controlled conditions.]
1955 Pharmaceut. Jrnl. 175 51/1 The approved name ascribed to the esters is macrogol followed by a number indicative of the approximate molecular weight of the polyethylene chain and concluding with an indication of the particular fatty acid used.
1963 Brit. Pharmaceut. Codex 438 The macrogols are strongly hydrophilic substances which are non-irritant to the skin and are well absorbed.
1986 Jrnl. Pharmacobio-dynamics 9 954/1 Macrogol 1000 (M-1000) and 6000 (M-6000) were obtained from..Tokyo.
This is a new entry (OED Third Edition, March 2000; most recently modified version published online March 2022).
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n.1955
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