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单词 polyformal
释义

> as lemmas

polyformal
polyformal n.
Brit. /ˌpɒlɪˈfɔːml/
,
U.S. /ˌpɑliˈfɔrm(ə)l/
= polyoxymethylene n.
ΘΚΠ
the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > thermoplastic resins > polyoxymethylene
polyoxymethylene1908
polyformal1935
polyformaldehyde1959
society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > plastic > capable of hardening after heating or (re)shaping > types of
polystyrol1873
polyoxymethylene1908
polystyrene1927
polyvinyl chloride1930
polyacetal1931
polyformal1935
polypropylene1935
PVC1941
polyacrylic1959
phenoxy1962
polyallomer1962
ionomer1964
parylene1965
polypro1986
1935 Jrnl. Amer. Chem. Soc. 57 925/2 The rate of distillation was quite slow; in this respect, the polyformals resembled the..polyesters derived from the higher dibasic acids.
1994 Proc. SPIE (Internat. Soc. Optical Engin.) 2143 104 Of particular interest are the polyethers (polyformals) derived from dihalomethanes.
extracted from poly-comb. form
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as lemmas
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