A series of amphiphilic biphenylylacetylene-based homo- and copolymers (PBPAs) carrying chiral and/or achiral oligo(ethylene glycol) pendants at the 4′-position of the biphenyl units were synthesized and the amplification of the macromolecular helicity through noncovalent and/or covalent chiral interactions followed by the memory of the helicity were investigated in both water and organic solvents. The macromolecular helicity was efficiently induced in the homopolymers of achiral monomers through specific encapsulation of a catalytic amount of hydrophobic chiral guests in water and their induced helicities were stably memorized in water after complete removal of the optically-active guests, while an excess helical sense was not biased at all in the homopolymers in toluene. One-handed macromolecular helicities were also efficiently induced in the chiral homopolymers through chiral information transfer from covalently linked optically-active pendants with a point chirality to biphenyl units with a dynamic axial chirality, whose helical senses were almost perfectly inverted in water and organic solvents. The achiral/chiral copolymers displayed a unique bidirectional (P and M) strong chiral amplification of the macromolecular helicity in water and toluene assisted by the solvent-induced helix-inversion, and their macromolecular helicities were further enhanced or inverted through encapsulation of a catalytic amount of enantiomeric alcohols in water, which could be further memorized in water after removing the encapsulated guests. We also demonstrated that the left- and right-handed circularly polarized lights could be generated through chirality transfer from the one-handed helical polymers with a macromolecular helicity memory, consisting entirely of achiral monomer units, to an achiral fluorescent dye in the blended films. Importantly, the resulting luminescence dissymmetry factors (ca. 2 × 10^–3) were virtually the same as those of chiral homopolymers composed of the optically-pure repeating units.

合成了一系列在联苯单元4'-位带有手性和/或非手性低聚乙二醇的侧链的两亲联苯乙炔基均聚物和共聚物（PBPA），并通过非共价和/或大分子螺旋的扩增在水和有机溶剂中均研究了共价手性相互作用以及随后的螺旋度记忆。通过催化量的疏水性手性客体在水中的特定包封，在非手性单体的均聚物中有效地诱导了大分子螺旋，在完全除去旋光性客体后，其诱导的直链被稳定地记忆在水中，同时存在过量的螺旋感。在甲苯的均聚物中完全没有偏倚。通过将手性信息从具有点手性的共价连接的光学活性侧基转移到具有动态轴向手性的联苯单元上，可以有效地在手性均聚物中诱导单分子大分子螺旋，其螺旋感在水和有机溶剂中几乎完全颠倒了。非手性/手性共聚物显示出独特的双向（P和M）在溶剂诱导的螺旋转化的辅助下，水和甲苯中大分子螺旋的强烈手性扩增，并通过将催化量的对映体醇包封在水中来进一步增强或逆转它们的大分子螺旋，这可能进一步除去包裹的客人后，将其记住在水中。我们还证明，左手和右手圆偏振光可以通过手性从具有完全非手性单体单元的大分子螺旋性记忆的单手螺旋聚合物转移到混合膜中的非手性荧光染料中来产生。重要的是，由此产生的发光不对称因子（约2×10 ^–3）实际上与由光学纯重复单元组成的手性均聚物的相同。