Self-Assembly of Hierarchical Structures Using Cyclotriphosphazene-Containing Poly(substituted methylene) Block Copolymers
Self-Assembly of Hierarchical Structures Using Cyclotriphosphazene-Containing Poly(substituted methylene) Block Copolymers
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DOI：
10.1021/acsmacrolett.7b00789
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发表时间：
2018-01-01
影响因子：
7.015
通讯作者：
Hayakawa, Teruaki
中科院分区：
文献类型：
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作者：
Kato, Fuminobu;Chandra, Alvin;Hayakawa, Teruaki
合成了环三磷腈取代的重氮乙酸酯均聚物（polyPNDA '）（PNDA' =六苯氧基取代的含磷腈亚甲基）和一种新型的聚取代亚甲基嵌段共聚物（polyPNDA '-b-polyHDA'），并研究了它们的自组装行为。在polyPNDA '的自组装结构中观察到六边形堆积的聚集结构，而在polyPNDA'-b-polyHDA '的微相分离纳米组装体中观察到层状结构。这些结果表明，形成了由高度规则的聚PNDA '纳米聚集体和长程微相分离的聚PNDA'和聚HDA '结构域组成的分级结构。
The cyclotriphosphazene-substituted diazoacetate homopolymer (polyPNDA') (PNDA' = hexaphenoxy-substituted phosphazene-containing methylene) and a novel poly(substituted methylene) block copolymer, polyPNDA'-block-poly(hexyloxycarbonylmethylene) (polyPNDA'-b-polyHDA'), were synthesized, and the self-assembly behavior of these polymers was studied in detail. A hexagonally packed aggregated structure was observed in the self-assembled structure of polyPNDA', whereas a lamellar structure was observed in the microphase-separated nanoassembly of polyPNDA'-b-polyHDA'. These results indicate that a hierarchical structure composed of highly regular polyPNDA' nanoaggregates and the long-range microphase-separated polyPNDA' and polyHDA' domains had formed.