In general, bulky side-chain and hydrogen bonding are in favor of the formation of stable helical conformation for polymers, which endows them with high optical property and some special performance.

许多文献报道证实，庞大的侧基或具有形成氢键能力的基团有利于聚合物主链形成稳定的螺旋构象，从而赋予材料高度的旋光活性和某些特殊功能。

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