当前位置：
X-MOL 学术
›
Macromol. Rapid Commun.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Graphoepitaxy of Symmetric Six-Arm Star-Shaped Poly(methyl methacrylate)-block-Polystyrene Copolymer Thin Film
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2021-08-04 , DOI: 10.1002/marc.202100411 So Yeong Park 1 , Hyeon U Jeong 2 , Jaeyong Lee 1 , Junho Jang 1 , Sanghoon Kim 1 , Chungryong Choi 1 , Jaeup U Kim 2 , Jin Kon Kim 1
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2021-08-04 , DOI: 10.1002/marc.202100411 So Yeong Park 1 , Hyeon U Jeong 2 , Jaeyong Lee 1 , Junho Jang 1 , Sanghoon Kim 1 , Chungryong Choi 1 , Jaeup U Kim 2 , Jin Kon Kim 1
Affiliation
|
The authors perform directed self-assembly based on graphoepitaxy of symmetric six-arm star-shaped poly(methyl methacrylate)-block-polystyrene copolymer [(PMMA-b-PS)6] thin film. The affinity between each block and the trench wall is adjusted by using polymer brushes or selective gold (Au) deposition. When the surface of the trench is strongly selective for the PMMA block, (n+0.75)L0 thick (n is the number of the lamellae, L0 is lamellar domain spacing) lamellae parallel to the trench wall are formed at each side, while nanotubes are formed away from the trench wall. However, for a trench grafted with PS brushes, nanotubes are formed beside (n+0.25)L0 thick lamellar layers. By adjusting the trench width (W) and the affinity between the block and the wall, various dual nanopatterns consisting of lines and nanotubes are fabricated. Moreover, when the trench wall is selectively deposited by Au, asymmetric dual nanopattern is formed, where different numbers of lines exist on each side wall, while nanotubes are formed in the middle of the trench. The observed morphologies depending on the commensurability condition between W and L0 are consistent with predictions by self-consistent field theory.
中文翻译：
对称六臂星形聚（甲基丙烯酸甲酯）-嵌段-聚苯乙烯共聚物薄膜的石墨外延
作者基于对称六臂星形聚(甲基丙烯酸甲酯)-嵌段-聚苯乙烯共聚物[(PMMA- b -PS) 6 ]薄膜的石墨外延进行定向自组装。通过使用聚合物刷或选择性金 (Au) 沉积来调整每个块和沟槽壁之间的亲和力。当沟槽表面对 PMMA 块具有强选择性时，( n +0.75) L 0厚（n是薄片的数量，L 0是层状畴间距）在每一侧形成平行于沟槽壁的层状结构，而纳米管远离沟槽壁形成。然而，对于用PS刷接枝的沟槽，在( n +0.25) L 0厚层状层旁边形成纳米管。通过调整沟槽宽度 ( W ) 和块与壁之间的亲和力，制造了各种由线和纳米管组成的双纳米图案。此外，当沟槽壁被Au选择性沉积时，形成了不对称的双纳米图案，其中每个侧壁上存在不同数量的线，而纳米管形成在沟槽中间。观察到的形态取决于W和L之间的可公度条件0与自洽场论的预测一致。
更新日期：2021-10-07
中文翻译：
对称六臂星形聚（甲基丙烯酸甲酯）-嵌段-聚苯乙烯共聚物薄膜的石墨外延
作者基于对称六臂星形聚(甲基丙烯酸甲酯)-嵌段-聚苯乙烯共聚物[(PMMA- b -PS) 6 ]薄膜的石墨外延进行定向自组装。通过使用聚合物刷或选择性金 (Au) 沉积来调整每个块和沟槽壁之间的亲和力。当沟槽表面对 PMMA 块具有强选择性时，( n +0.75) L 0厚（n是薄片的数量，L 0是层状畴间距）在每一侧形成平行于沟槽壁的层状结构，而纳米管远离沟槽壁形成。然而，对于用PS刷接枝的沟槽，在( n +0.25) L 0厚层状层旁边形成纳米管。通过调整沟槽宽度 ( W ) 和块与壁之间的亲和力，制造了各种由线和纳米管组成的双纳米图案。此外，当沟槽壁被Au选择性沉积时，形成了不对称的双纳米图案，其中每个侧壁上存在不同数量的线，而纳米管形成在沟槽中间。观察到的形态取决于W和L之间的可公度条件0与自洽场论的预测一致。
京公网安备 11010802027423号