This work aimed to examine the self-assembling behaviors of polystyrene-b-poly(2-vinyl pyridine) (PS-P2VP) complexed with chiral dopants, R-/S-mandelic acid (R-/S-MA). Induced vibrational circular dichroism (VCD) due to intra-chain chiral interaction suggests the formation of helical P2VP with preferred handedness by complexation with R-/S-MA, demonstrating the induced circular dichroism (ICD) behaviors for the C-C single bond without high-degree tacticity. Owing to the microphase separation, helical superstructures with controlled helicity could be formed from the self-assembly of PS-P2VP with ICD. Most interestingly, the self-assembled helical ribbon exhibits reversed helical sense to the helical P2VP, as evidenced by induced VCD through inter-chain chiral interaction and rationalized using cholesteric hard-core model due to a large value of P/d ratio.

这项工作旨在检查与手性掺杂剂R- / S-扁桃酸（R- / S-MA）络合的聚苯乙烯-b-聚（2-乙烯基吡啶）（PS-P2VP）的自组装行为。链内手性相互作用引起的诱导振动圆二色性（VCD）表明，通过与R- / S-MA络合形成了具有较好旋手性的螺旋P2VP，证明了CC单键的诱导圆二色性（ICD）行为没有高-学位战术。由于微相分离，可以通过PS-P2VP与ICD的自组装形成具有受控螺旋度的螺旋上层结构。最有趣的是，自组装的螺旋形螺带呈现出与螺旋形P2VP相反的螺旋形方向，