• THERMODYNAMICS AND CHEMICAL…… • Previous Articles Next Articles
HAN Xia; LIU Honglai; DONG Yaming; Hu Ying
Received:
Revised:
Online:
Published:
Contact:
韩霞; 刘洪来; 董亚明; 胡英
通讯作者:
Abstract: Surface morphologies of the films of poly [styrene-b-(ethylene-co-butene)-b-styrene] (SEBS) have been studied by using tapping-mode atomic force microscopy (TM-AFM). The films of block copolymer were prepared both by spin-coating on mica and by solvent-casting on different solution surfaces. For spin-coating samples, the effect of solution concentration, solvent, and annealing temperature are investigated. It is shown that changing the concent ration of the solution makes no difference on the morphology of the film of the block copolymer. The microstructures are quite stable during thermal annealing; only the size of the domains changes toward the equilibrium configuration. However, solvent annealing can notably change the microstructures. When different selective solvents are used for film spin-coating, different morphologies can be obtained and explained by the different solubility parameters of the solvents. As expected, significant different morphologies in the top and the bottom surfaces of the casting films were observed. The images of the top surfaces reveal cylinder microdomains, while those of the bottom surfaces were spherical morphologies.
Key words: atomic force microscopy (AFM), morphology, block copolymer, spin-coating, solvent-casting
摘要: Surface morphologies of the films of poly [styrene-b-(ethylene-co-butene)-b-styrene] (SEBS) have been studied by using tapping-mode atomic force microscopy (TM-AFM). The films of block copolymer were prepared both by spin-coating on mica and by solvent-casting on different solution surfaces. For spin-coating samples, the effect of solution concentration, solvent, and annealing temperature are investigated. It is shown that changing the concent ration of the solution makes no difference on the morphology of the film of the block copolymer. The microstructures are quite stable during thermal annealing; only the size of the domains changes toward the equilibrium configuration. However, solvent annealing can notably change the microstructures. When different selective solvents are used for film spin-coating, different morphologies can be obtained and explained by the different solubility parameters of the solvents. As expected, significant different morphologies in the top and the bottom surfaces of the casting films were observed. The images of the top surfaces reveal cylinder microdomains, while those of the bottom surfaces were spherical morphologies.
关键词: 三嵌段共聚物;SEBS;形态特征;电子结构
HAN ,Xia, LIU ,Honglai, DONG ,Yaming, Hu ,Ying. Morphology of Films of SEBS Triblock Copolymers[J]. , DOI: .
韩霞, 刘洪来, 董亚明, 胡英. SEBS三嵌段共聚物膜的形态研究[J]. , DOI: .
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: https://cjche.cip.com.cn/EN/
https://cjche.cip.com.cn/EN/Y2005/V13/I4/498