Morphology Diagram of Single-Layer Crystal Patterns in Supercooled Poly(ethylene oxide) Ultrathin Films: Understanding Macromolecular Effect of Crystal Pattern Formation and Selection.
Morphology Diagram of Single-Layer Crystal Patterns in Supercooled Poly(ethylene oxide) Ultrathin Films: Understanding Macromolecular Effect of Crystal Pattern Formation and Selection.
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DOI：
10.1021/mz2001109
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发表时间：
2012-01
影响因子：
5.8
通讯作者：
Guoliang Zhang;X. Zhai;Zhenpeng Ma;Liuxin Jin;Ping Zheng;Wei Wang;Stephen Z. D. Cheng;B. Lotz
中科院分区：
文献类型：
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作者：
Guoliang Zhang;X. Zhai;Zhenpeng Ma;Liuxin Jin;Ping Zheng;Wei Wang;Stephen Z. D. Cheng;B. Lotz
在分子量范围为 2.02k 至 932.0k g/mol 的 10 种聚环氧乙烷组分的超薄膜中观察到一系列单层晶体图案。定量鉴定了这些不同晶体模式之间的形态转变，并构建了关于过冷和分子量依赖性的形态图。这将促进对与分子扩散长度和生长各向异性参数关键相关的晶体图案形成和选择的大分子影响的理解。
A series of single-layer crystal patterns were observed in ultrathin films of 10 poly(ethylene oxide) fractions of molecular weights ranging from 2.02k to 932.0k g/mol. Morphology transitions between these different crystal patterns were quantitatively identified, and a morphology diagram with respect to supercooling and molecular weight dependencies was constructed. This will foster understanding of the macromolecular effects on the crystal pattern formation and selection critically associated with the parameters of molecular diffusion length and growth anisotropy.