A rheological characterization of SBS block copolymers
A rheological characterization of SBS block copolymers
复制标题
SBS嵌段共聚物的流变学表征
DOI：
--
复制
发表时间：
1970
期刊：
影响因子：
--
通讯作者：
D. Meier
中科院分区：
文献类型：
--
作者：
K. Arnold;D. Meier
在不同温度下，研究了不同嵌段尺寸的苯乙烯-丁二烯-苯乙烯（SBS）嵌段共聚物熔体的动态粘度与频率的关系。数据表现出两个不同的区域，一个高频区域的响应是典型的热塑性塑料和一个低频区域的粘度不断增加，随着变形速率的降低。这些结果成功地解释了在低频区的聚苯乙烯域的形成。给出的流变性能的相关性应提供额外的洞察这些材料的加工。
The dynamic viscosities of styrene–butadiene–styrene (SBS) block copolymer melts with different end- and midblock sizes are given as a function of frequency at several different temperatures. The data exhibit two distinct regions, a high frequency region where the response is typical of thermoplastics and a low frequency region where the viscosity continually increases with decreasing deformation rates. These results are successfully explained in terms of the formation of polystyrene domains in the low frequency region. The correlations given for the rheological properties should provide additional insight to the processing of these materials.