polymethylenen.

Brit.

/ˌpɒlɪˈmɛθᵻliːn/, U.S.

/ˌpɑliˈmɛθəˌlin/

Origin: Formed within English, by compounding. Etymons: poly- comb. form, methylene n.

Etymology: < poly- comb. form + methylene n.

Chemistry.

Originally: any of the series of saturated cyclic hydrocarbons with the formula (CH₂)_n; = naphthene n. 2. Later: a compound, group, or polymeric structure which consists of or contains a chain of methylene groups, —(CH₂)_n—. Frequently attributive.

ΘΚΠ

the world > matter > chemistry > polymer chemistry > polymers (named others) > [noun] > others miscellaneous

polysulphide1849

indoline1884

polyacetylene1885

polymethylene1892

polysaccharide1892

polysaccharose1894

polyose1895

polymethacrylic acid1897

hydrol1900

polyphosphate1908

polyphenylene1921

polyacrylate1932

polyacrylonitrile1935

polyisocyanate1943

polyacrylamide1944

polysiloxane1944

polyglycolic acid1956

polynosic1959

anomalous water1966

polywater1969

1892 Jrnl. Chem. Soc. 62 1310 In this paper the author discusses the question of the identity of the naphthenes from Caucasus petroleum and the polymethylenes.

1910 N. V. Sidgwick Org. Chem. Nitrogen ii. 21 In the polymethylene derivatives the ring is often affected.

1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) i. 43 Russian petroleum..contains appreciable amounts of polymethylene hydrocarbons or naphthenes.

1930 Jrnl. Amer. Chem. Soc. 52 317 Those poly-esters in which the structural units contain polymethylene chains (CH₂)_x, in which x is greater than 3–5, show great solubility in benzene.

1953 R. J. W. Reynolds in R. Hill Fibres from Synthetic Polymers v. 98 Other addition reactions which can give rise to linear polymers are those involving the polymerisation of..diazomethane or diazoalkanes to give polymethylenes or their alkyl substituted products.

2001 Chemicals & Materials from Renewable Resources (ACS Symposium Ser. No. 784) xii. 149 Relatively minor changes in the substituents attached to the polymethylene chain drastically alter the physical properties of polyolefins.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polymethylene
释义	polymethylenen. Brit. /ˌpɒlɪˈmɛθᵻliːn/, U.S. /ˌpɑliˈmɛθəˌlin/ Origin: Formed within English, by compounding. Etymons: poly- comb. form, methylene n. Etymology: < poly- comb. form + methylene n. Chemistry. Originally: any of the series of saturated cyclic hydrocarbons with the formula (CH₂)_n; = naphthene n. 2. Later: a compound, group, or polymeric structure which consists of or contains a chain of methylene groups, —(CH₂)_n—. Frequently attributive. ΘΚΠ the world > matter > chemistry > polymer chemistry > polymers (named others) > [noun] > others miscellaneous polysulphide1849 indoline1884 polyacetylene1885 polymethylene1892 polysaccharide1892 polysaccharose1894 polyose1895 polymethacrylic acid1897 hydrol1900 polyphosphate1908 polyphenylene1921 polyacrylate1932 polyacrylonitrile1935 polyisocyanate1943 polyacrylamide1944 polysiloxane1944 polyglycolic acid1956 polynosic1959 anomalous water1966 polywater1969 1892 Jrnl. Chem. Soc. 62 1310 In this paper the author discusses the question of the identity of the naphthenes from Caucasus petroleum and the polymethylenes. 1910 N. V. Sidgwick Org. Chem. Nitrogen ii. 21 In the polymethylene derivatives the ring is often affected. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) i. 43 Russian petroleum..contains appreciable amounts of polymethylene hydrocarbons or naphthenes. 1930 Jrnl. Amer. Chem. Soc. 52 317 Those poly-esters in which the structural units contain polymethylene chains (CH₂)_x, in which x is greater than 3–5, show great solubility in benzene. 1953 R. J. W. Reynolds in R. Hill Fibres from Synthetic Polymers v. 98 Other addition reactions which can give rise to linear polymers are those involving the polymerisation of..diazomethane or diazoalkanes to give polymethylenes or their alkyl substituted products. 2001 Chemicals & Materials from Renewable Resources (ACS Symposium Ser. No. 784) xii. 149 Relatively minor changes in the substituents attached to the polymethylene chain drastically alter the physical properties of polyolefins. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1892
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