Six different bottlebrush block copolymers (BBCPs) (A‐b‐(B‐co‐C)) from bottlebrush polystyrene (A) and bottlebrush random copolymers (B‐co‐C) of polymethacrylates were synthesized through living anionic polymerization and ring‐opening metathesis polymerization. To induce the phase separation of bottlebrush polystyrene (PNB‐g‐PS) (A) and bottlebrush poly(benzyl methacrylate) (PNB‐g‐PBzMA) (C)‐based BBCP with an extremely low Flory–Huggins interaction parameter (χ), three kinds of bottlebrush polymethacrylates (B): poly(norbornene‐g‐methyl methacrylate) (PNB‐g‐PMMA), poly(norbornene‐g‐tert‐butyl methacrylate) (PNB‐g‐PtBMA), and poly(norbornene‐g‐methacrylic acid) (PNB‐g‐PMAA), respectively, were randomly combined with C. An order–disorder phase transition of the BBCPs (A‐b‐(B‐co‐C)) was observed with a change in mole ratios of PMMA, PtBMA, or PMAA to PBzMA of 25, 50, and 75% in random copolymer blocks using field‐emission scanning microscopy. While the BBCP with 25% of PMAA in the random copolymer block showed an ordered lamellar nanostructure, a disordered morphology was revealed at 75% PMAA. SEM showed that the incorporation of PtBMA and PBzMA showed better‐ordered lamellar morphologies than was the case with PMMA and PBzMA at the same mole ratios.

中文翻译：

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由瓶刷聚苯乙烯和ω-端降冰片基聚甲基丙烯酸酯的瓶刷无规共聚物合成的瓶刷嵌段共聚物及其自组装

通过活性阴离子聚合和开环合成了六种不同的瓶刷聚苯乙烯（A）的瓶刷嵌段共聚物（BBCP）（A- b-（B- co- C））和聚甲基丙烯酸酯的瓶刷无规共聚物（B- co- C）复分解聚合。诱导瓶刷聚苯乙烯（PNB- g- PS ）（A）和瓶刷聚（甲基丙烯酸苄酯）（PNB- g- PBzMA）（C）的BBCP的相分离，且其Flory-Huggins相互作用参数（χ）非常低三种瓶刷的聚甲基丙烯酸酯（B）：聚（降冰片烯克-甲基丙烯酸甲酯）（PNB-克-PMMA），聚（降冰片烯克-叔丁基甲基丙烯酸酯）（PNB-克-P吨BMA）和聚（降冰片烯克-甲基丙烯酸）（PNB-克-PMAA），分别随机地与BBCPs的C.有序-无序相转变组合（ A- b - （B-共-C））与在PMMA，P的摩尔比的变化观察到吨BMA，或PMAA至25 PBzMA，50％，和在使用场致发射扫描显微镜无规共聚物嵌段的75％。尽管在无规共聚物嵌段中具有25％PMAA的BBCP表现出有序的层状纳米结构，但在75％PMAA时却显示出无序的形态。SEM表明Pt的掺入与相同摩尔比的PMMA和PBzMA相比，BMA和PBzMA表现出更好的层状形态。