Kinetic Pathways of Lamellae to Gyroid Transition in Weakly Segregated Diblock Copolymers
Kinetic Pathways of Lamellae to Gyroid Transition in Weakly Segregated Diblock Copolymers
复制标题
弱偏析二嵌段共聚物中片层到螺旋体转变的动力学路径
DOI：
10.1021/acs.macromol.5b02023
复制
发表时间：
2015-11
期刊：
影响因子：
5.5
通讯作者：
Qiu Feng
中科院分区：
文献类型：
--
作者：
Ji Nan;Tang Ping;Qiu Feng
The kinetic pathways connecting the lamellar and gyroid phases in weakly segregated block copolymers are examined by combining the string method and the self-consistent mean-field theory for polymers. In particular, phase transition from arbitrarily oriented lamellae to gyroid is studied. The results reveal that initially the lamella will evolve into a metastable structure via a nucleation and growth mechanism, and then a secondary nucleation of the gyroid occurs in the metastable phase. The observed metastable structures include the perforated lamellae (PL), the O70 phase, and the tetragonally perforated layers (TPLabc). Nucleation and growth is the dominant mechanism, and prior phase transition passed by HPLabc, which is a long-lived metastable structure, has the minimal energy barrier.
登录
查看更多内容
影响因子：
5.5
作者：
HAJDUK, DA;HARPER, PE;FETTERS, LJ
通讯作者：
FETTERS, LJ
影响因子：
5.5
作者：
M. Takenaka;Tsutomu Wakada;S. Akasaka;S. Nishitsuji;K. Saijo;H. Shimizu;H. Hasegawa
通讯作者：
M. Takenaka;Tsutomu Wakada;S. Akasaka;S. Nishitsuji;K. Saijo;H. Shimizu;H. Hasegawa
影响因子：
4.4
作者：
Imai, M;Sakai, K;Teramoto, T
通讯作者：
Teramoto, T
影响因子：
5.5
作者：
C. Chu;Wen-Fu Lin;J. Tsai;Chia-Sheng Lai;S. Lo;Hsin‐Lung Chen;T. Hashimoto
通讯作者：
C. Chu;Wen-Fu Lin;J. Tsai;Chia-Sheng Lai;S. Lo;Hsin‐Lung Chen;T. Hashimoto
影响因子：
3.9
作者：
A. Squires;R. Templer;J. Seddon;J. Woenckhaus;R. Winter;S. Finet;N. Theyencheri
通讯作者：
A. Squires;R. Templer;J. Seddon;J. Woenckhaus;R. Winter;S. Finet;N. Theyencheri