Close-Packed Lattice in Sphere-Forming Block Copolymer/Block Copolymer Blends

被引：1
|
作者：
Takagi, Hideaki [1 ,2 ]
Yamamoto, Katsuhiro [3 ,4 ]
机构：
[1] High Energy Accelerator Res Org, Inst Mat Struct Sci, Photon Factory, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan
[2] Grad Univ Adv Studies, Sch High Energy Accelerator Sci, Dept Mat Struct Sci, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan
[3] Nagoya Inst Technol, Frontier Res Inst Mat Sci, Showa Ku, Gokiso Cho, Nagoya, Aichi 4668555, Japan
[4] Nagoya Inst Technol, Dept Life Sci & Appl Chem, Grad Sch Engn, Showa Ku, Gokiso Cho, Nagoya, Aichi 4668555, Japan
来源：
KOBUNSHI RONBUNSHU | 2019年 / 76卷 / 02期
基金：
日本学术振兴会;
关键词：
Block Copolymer; Spherical Microdomain; Closed-Packed Lattice; SAXS; ORDER-DISORDER TRANSITION; FRANK-KASPER; CUBIC LATTICE; MICELLES; PHASES; DISCOVERY; MIXTURES; FCC;
D O I：
10.1295/koron.2018-0048
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The phase behavior in binary mixtures of block copolymers was investigated using synchrotron small angle X-ray scattering. Polystyrene-polyisoprene block copolymers (SI) have equal length of the polyisoprene blocks, whereas the length of minority polystyrene blocks differs. In the blend sample with the weight fraction of long SI of 10 wt%, disordered spheres was formed, whereas closely packed spheres in face-centered cubic lattice was observed for the sample with 30wt%. It was also found that the blend with 50wt% showed cylindrical microdomains. Thus, the close-packed lattice was observed as a stable phase in block copolymer/block copolymer blends.
引用
收藏
页码：157 / 162
页数：6
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