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数学
EFFECT OF MOLECULAR WEIGHT OF PMMA ON β PHASE CRYSTALLIZATION IN HIGHLY ORIENTED PVF_2 FILMS
<正> Polyvinylidene fluoride (PVF_2) exhibits at least four crystalline phases (α, β, γ, and δ). Among them, β phase is the most important one because it is directly related to the piezoand pyro-electric activities of PVF_2. In recent years, more attention has been paid to the β
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Chinese Science Bulletin
1990年20期

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