Epitaxial Phase Transition between Double Gyroid and Cylinder Phase in Diblock Copolymer Thin Film
Epitaxial Phase Transition between Double Gyroid and Cylinder Phase in Diblock Copolymer Thin Film
复制标题
二嵌段共聚物薄膜中双螺旋相和圆柱相之间的外延相变
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
H. Jinnai
中科院分区：
文献类型：
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作者：
Jueun Jung;Junyoung Lee;Hae;T. Chang;H. Sugimori;H. Jinnai
利用透射电子显微断层扫描和掠入射小角 X 射线散射研究了硅片上聚苯乙烯-嵌段-聚异戊二烯薄膜中双螺旋体 (DG) 和六方堆积柱体 (HEX) 相之间热相变的外延关系。观察到两种不同类型的外延转变，并且它们似乎根据转变方向选择性地受到青睐。加热时从 DG 到 HEX 的相变中存在一种类型的外延关系，其中 {121}DG、{111}DG 和 {220}DG 分别转化为 {100}HEX、{110}HEX 和 {001}HEX。相间平面为 {220}DG 和 {001}HEX，并且圆柱体在 DG 和 HEX 之间的晶界处垂直（正面，A 型）与 {220}DG 平面相交。尽管在这种外延关系中圆柱体的位置存在小的尺寸失配和扭曲，但所有圆柱体都是沿着拓扑等效的 DG 骨架路径形成的。在...
The epitaxial relationship in the thermal phase transition between double gyroid (DG) and hexagonally packed cylinder (HEX) phases in polystyrene-block-polyisoprene thin films on Si wafer was investigated using transmission electron microtomography and grazing incidence small-angle X-ray scattering. Two different types of epitaxial transitions were observed, and they appeared to be selectively favored depending on the transition direction. One type of epitaxial relationship prevails in the phase transition from DG to HEX upon heating in which {121}DG, {111}DG, and {220}DG are converted to {100}HEX, {110}HEX, and {001}HEX, respectively. The interphase planes are {220}DG and {001}HEX, and the cylinders meet the {220}DG plane perpendicularly (head-on, Type A) at the grain boundary between DG and HEX. Although there are small dimensional mismatch and distortion in the location of the cylinders in this epitaxial relationship, all cylinders are formed along the topologically equivalent DG skeletal path. On the ...
直接测量双连续嵌段共聚物形态中的界面曲率分布。
DOI：
10.1103/physrevlett.84.518
发表时间：
2000
期刊：
Physical review letters.
影响因子：
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作者：
Jinnai,H;Nishikawa,Y;Spontak,RJ;Smith,SD;Agard,DA;Hashimoto,T
通讯作者：
Hashimoto,T