The specific interactions between polyacrylamide brushes composed of polyacrylamide chains tethered to montmorillonite particles (Mt-g-PAm) and the individual components of immiscible ethylene-propylene-diene modified with sorbic acid (EPDM) and methyl vinyl silicone (MVQ) blends were studied. The effect of various lengths of PAm chains and their grafting density on montmorillonite (Mt) surface was investigated.

It was determined that, due to interactions generated within the system through carboxyl and amide groups the brush particles were selectively located at the EPDM/MVQ interphase and in the EPDM phase. Furthermore, the longer PAm chains resulted in an increase of the glass transition of EPDM, unification of blend morphology, and the reduction of crystallinity of the MVQ phase. Therefore, precisely designed polymer brushes could be considered as novel functional compatibilizers, that provide a new tool for the future material designing.

研究了由拴在蒙脱石颗粒上的聚丙烯酰胺链（Mt- g- PAm）组成的聚丙烯酰胺刷与山梨酸改性的不溶混的乙烯-丙烯-二烯（EPDM）和甲基乙烯基硅氧烷（MVQ）混合物之间的特定相互作用。研究了不同长度的PAm链及其接枝密度对蒙脱土（Mt）表面的影响。

已经确定，由于在系统内通过羧基和酰胺基团产生的相互作用，刷子颗粒选择性地位于EPDM / MVQ界面相和EPDM相中。此外，较长的PAm链导致EPDM的玻璃化转变增加，共混物形态统一以及MVQ相的结晶度降低。因此，精确设计的聚合物刷可以被视为新型的功能相容剂，为将来的材料设计提供了新的工具。