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首页> 美国卫生研究院文献>ACS AuthorChoice >Porous Polystyrene Monoliths Prepared from in Situ SimultaneousInterpenetrating Polymer Networks: Modulation of Morphology by PolymerizationKinetics
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Porous Polystyrene Monoliths Prepared from in Situ SimultaneousInterpenetrating Polymer Networks: Modulation of Morphology by PolymerizationKinetics

机译：原位同时制备多孔聚苯乙烯整体料互穿聚合物网络：通过聚合调节形态动力学

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Semi-interpenetrating polymer networks (semi-IPNs) were prepared by in situ simultaneous orthogonal polymerizations, where the linear poly(ε-caprolactone) (PCL) was synthesized by ring-opening polymerization of ε-caprolactone and the poly(styrene-co-divinylbenzene) (PS) network was formed by free-radical polymerization of styrene/divinylbenzene. Semi-IPNs were used as the precursors for the preparation of porous PS monoliths. To this end, the PCL domains were selectively removed by hydrolysis under basic conditions. By changing the amount of organocatalyst used for the ring-opening polymerization of ε-caprolactone, the relative polymerization kinetics of both monomers was varied, which has a pronounced effect on the morphology of thus-obtained PS frameworks.
机译：通过原位同时正交聚合制备半互穿聚合物网络（semi-IPNs），其中通过ε-己内酯和聚（苯乙烯-co-co-）的开环聚合反应合成线性聚（ε-己内酯）（PCL）通过苯乙烯/二乙烯基苯的自由基聚合形成二乙烯基苯）（PS）网络。半IPN被用作制备多孔PS整料的前体。为此，在碱性条件下通过水解选择性除去PCL结构域。通过改变用于ε-己内酯的开环聚合的有机催化剂的量，改变了两种单体的相对聚合动力学，这对由此获得的PS骨架的形态具有显着影响。

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