We present a DSC and X-ray scattering study investigating the effect of polyhedral oligomeric silsesquioxane (POSS) block crystallinity on the self-assembly of a poly(acryloisobutyl polyhedral oligomeric silsesquioxane)-b-poly(ethylene oxide)-b-poly(acryloisobutyl polyhedral oligomeric silsesquioxane) (POSS-PEO-POSS) triblock copolymer and poly(ethylene oxide)-b- poly(acryloisobutyl polyhedral oligomeric silsesquioxane) (PEO-POSS) diblock copolymers mixed with lithium bis(trifluoromethanesulfonyl)imide salt. The POSS block in all copolymer/salt mixture organizes into a rhombohedral crystal, similar to that of the POSS homopolymer. Semicrystalline polymer/salt mixtures favor morphologies with flat interfaces (i.e., lamellae) despite the asymmetric nature of the copolymers; PEO/salt volume fractions range from 0 to 0.85. Coexisting lamellae and hexagonally packed cylinders as well as coexisting lamellae with different domain spacings are seen in many copolymer/salt mixtures wherein the POSS block is amorphous. Morphological phase transitions in these systems are seen in the vicinity of the POSS crystallization temperature.

我们提出了DSC和X射线散射研究，研究了多面体低聚倍半硅氧烷（POSS）嵌段结晶度对聚（丙烯酰基异丁基多面体低聚倍半硅氧烷）-b-聚（环氧乙烷）-b-聚（丙烯酰基异丁基）的自组装的影响多面体低聚倍半硅氧烷）（POSS-PEO-POSS）三嵌段共聚物和聚（环氧乙烷） - b -锂双（三氟甲烷磺酰）亚胺盐混合聚（acryloisobutyl多面体低聚倍半硅氧烷）（PEO-POSS）二嵌段共聚物。所有共聚物/盐混合物中的POSS嵌段都组织成菱形晶体，类似于POSS均聚物。半结晶聚合物/盐混合物倾向于具有平坦界面的形态（即（，薄片）尽管共聚物的不对称性质；PEO /盐体积分数的范围为0到0.85。在许多共聚物/盐混合物中（其中POSS嵌段是无定形的）可以看到共存的薄片和六角形填充的圆柱体以及具有不同畴间距的共存薄片。在POSS结晶温度附近可以看到这些系统的形态相变。