The Properties of 'RADEL R' Polysulfone
The Properties of 'RADEL R' Polysulfone
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“RADEL R”聚砜的特性
DOI：
10.1177/152483999000200301
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发表时间：
1990
影响因子：
2.1
通讯作者：
Karl Fisher
中科院分区：
文献类型：
--
作者：
R’ Polysulfone;R. Ethier;P. Toporowski;Karl Fisher
制备并分馏了一系列基于联苯酚和二氯二苯砜的芳香族聚醚砜。这些级分已通过光散射和特性粘度测量进行了表征。特征比C∝=1.96，这与聚醚砜链的自由旋转性质一致。建立了玻璃化转变温度的分子量依赖性。当用机械光谱仪以 1 rad/s 测量时，低温 β-转变为 -113°C。
A series of aromatic polyethersulfones based on biphenol and dichlorodi phenylsulfone have been prepared and fractionated. The fractions have been character ized by light scattering and intrinsic viscosity measurements. The characteristic ratio C ∝ = 1.96 which is in agreement with the freely rotating nature of the polyethersulfone chain. The molecular weight dependence of the glass transition temperature is established. The low temperature β-transition is at -113°C when measured at 1 rad/s with a mechanical spectrometer.