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单词 polybutylene
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polybutylene
polybutylene n.
Brit. /ˌpɒlɪˈbjuːtᵻliːn/
,
/ˌpɒlɪˈbjuːtl̩iːn/
,
U.S. /ˌpɑliˈbjudlˌin/
a polymer of butylene; esp. one that is a rigid thermoplastic material formerly used for water pipes.
ΚΠ
1942 Industr. & Engin. Chem. Oct. 1197/2 The Kcm constant of 0.75 x 104 for polybutylenes dissolved in n-hexane (Skellysolve B) is considered to be a suitable selection, provided the molecular weight is 1000 or greater.
2002 Chem. Week (Nexis) 14 Aug. 12 Polybutylene was used extensively during the 1980s and early 1990s as a substitute for copper piping, but was found to become brittle and fail.
extracted from poly-comb. form
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