ICCAS OpenIR
Crystallization of H-Shaped (PS)(2)PEG (PS)(2) Block Copolymer During Spin Coating
Pan Ying-Ying1,2; Zhang Ji-Dong1; Shi Tong-Fei1; An Li-Jia1
2010-04-10
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume31Issue:4Pages:815-820
AbstractThe morphologies of H-shaped (PS7)(2)PEG(227) (PS7)(2) block copolymer films spin coated onto silicon wafers from different solutions were investigated by means of atomic force microscopy(AFM) and grazing incidence X-ray diffraction. We further compared the crystallization of H-shaped block copolymer with that of poly ( ethylene oxide) ( PEG) homopolymer. The presence of PS block changed the interaction of polymer and substrate. When solvent was tetrahydrofuran, the copolymer dewettecl and crystallized after spin coating when the concentration of solution was 0.1% and 0.25%. As the concentration increased to 0.5%, dewetting was suppressed and two-dimensional spherulites appeared. If toluene was used as solvent, micelles were formed in the solution due to the differences between solubility of PEG and PS block, which changed the final film morphologies. Dendritic crystals containing edge-on and flat-on crystals appeared from the 0.1% solution. More compact crystals appeared while the concentration increased, and large square lamellae was observed after spincoating of 0.5% solution.
KeywordBlock Copolymer Crystallization Spin Coating H-shape
Indexed BySCI
Language英语
WOS IDWOS:000277223700038
PublisherHIGHER EDUCATION PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69180
Collection中国科学院化学研究所
Corresponding AuthorShi Tong-Fei
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Pan Ying-Ying,Zhang Ji-Dong,Shi Tong-Fei,et al. Crystallization of H-Shaped (PS)(2)PEG (PS)(2) Block Copolymer During Spin Coating[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2010,31(4):815-820.
APA Pan Ying-Ying,Zhang Ji-Dong,Shi Tong-Fei,&An Li-Jia.(2010).Crystallization of H-Shaped (PS)(2)PEG (PS)(2) Block Copolymer During Spin Coating.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,31(4),815-820.
MLA Pan Ying-Ying,et al."Crystallization of H-Shaped (PS)(2)PEG (PS)(2) Block Copolymer During Spin Coating".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 31.4(2010):815-820.
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