ICCAS OpenIR
Crystallization behavior of poly(epsilon-caprolactone) grafted on silicon surface
Wang, Xi1; Yang, Juping2; Zhou, Jianjun3
2011-08-14
Source PublicationE-POLYMERS
ISSN1618-7229
AbstractPoly(epsilon-caprolactone) (PCL) grafted on silicon wafer with different thickness (10 to 100 nm) were prepared by surface-initiated ring-opening polymerization (ROP). The morphologies, crystallinity, and crystallization rate of different thickness thin films have been investigated by atomic force microscopy (AFM) and Fourier transform infrared spectroscopy (FTIR). The nascent morphology of the as polymerized 15 nm film was found to be nodular structure form. As the film thickness increased, the nodular structures gradually aggregated to form flat-on lamellae. When the film thickness reached 100 nm, the surface of silicon wafer was covered with a whole layer of flat-on lamellae. The isothermal crystallization study on 100 nm film had shown that the tethered PCL chains could only crystallize in the form of flat-on lamellae. FTIR study had showed that the crystallinity decreased significantly with the film thickness decreasing, while the half-crystallization time increased as the film became thicker. The half-crystallization time increase of thicker film was supposed to relate with the degree of chain entanglement in the tethered brushes.
KeywordPolymer Brush Crystallization Behavior Ring-opening Polymerization Tomic Force Microscopy Fourier Transform Infrared Spectroscopy Flat-on Lamellae
Indexed BySCI
Language英语
WOS IDWOS:000294944900003
PublisherEUROPEAN POLYMER FEDERATION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72414
Collection中国科学院化学研究所
Corresponding AuthorWang, Xi
Affiliation1.Hunan Normal Univ, Coll Chem & Chem Engn, Key Lab Fine Proc Resources & Adv Mat Hunan Prov, Changsha 410081, Hunan, Peoples R China
2.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
3.Beijing Normal Univ, Chem Coll, Beijing 100875, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xi,Yang, Juping,Zhou, Jianjun. Crystallization behavior of poly(epsilon-caprolactone) grafted on silicon surface[J]. E-POLYMERS,2011.
APA Wang, Xi,Yang, Juping,&Zhou, Jianjun.(2011).Crystallization behavior of poly(epsilon-caprolactone) grafted on silicon surface.E-POLYMERS.
MLA Wang, Xi,et al."Crystallization behavior of poly(epsilon-caprolactone) grafted on silicon surface".E-POLYMERS (2011).
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