Real-Time SAXS Observations of Lamella-Forming Block Copolymers under Large Oscillatory Shear Deformation
Real-Time SAXS Observations of Lamella-Forming Block Copolymers under Large Oscillatory Shear Deformation
复制标题
大振荡剪切变形下片层形成嵌段共聚物的实时 SAXS 观察
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
T. Hashimoto
中科院分区：
文献类型：
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作者：
S. Okamoto;K. Saijo;T. Hashimoto
对具有交替层状微区的聚苯乙烯-嵌段-聚（乙烯-交替-丙烯）共聚物膜进行了实时和原位SAXS研究。用二维探测器对薄膜样品进行了小角X射线散射（SAXS）检测，薄膜样品在频率f= 0.0149或1 Hz、温度T= 105或130°C下经受了具有γ（-0.5≤ γ≤ 0.5）的大振幅振荡剪切变形。试样最初具有单轴取向，片层法线1优先平行于薄膜法线（OZ轴）取向
Real-time and in-situ SAXS studies were conducted on polystyrene-block-poly(ethylene-alt-propylene) copolymer films having alternating lamellar microdomains. SAXS was detected with a 2D detector from the film specimens subjected to a large-amplitude oscillatory shear deformation with a sawtooth type strain γ (-0.5≤ γ≤ 0.5) at frequency f= 0.0149 or 1 Hz and at temperature T= 105 or 130°C. The specimens initially had a uniaxial orientation with the lamellar normal 1 preferentially oriented parallel to the film normal (OZ axis)