SHALLOW REORIENTATION IN THE SURFACE DYNAMICS OF PLASMA-TREATED FLUORINATED ETHYLENE PROPYLENE POLYMER
文献类型：期刊论文
| 作者 | GRIESSER, HJ; DA, YX; HUGHES, AE; GENGENBACH, TR; MAU, AWH |
| 刊名 | LANGMUIR
 |
| 出版日期 | 1991-11-01 |
| 卷号 | 7期号:11页码:2484-2491 |
| ISSN号 | 0743-7463 |
| 英文摘要 | Samples of fluorinated ethylene propylene (FEP) copolymer have been treated in plasma atmospheres that induce oxidative modification of the surface. Contact angles changed markedly within short plasma treatment times, and XPS demonstrated the incorporation of oxygen-containing chemical groups on the FEP surface. The contact angles, measured after various storage times in air to assess the long-term stability of the modified surfaces, increased markedly within a 3-week period whereas the changes in XPS were considerably less pronounced. Surface recontamination appeared unlikely on the basis of XPS analysis and the surface reversal was attributed to FEP chain dynamics, which causes rearrangement toward a lower energy surface. The surface reorientation of plasma-treated FEP samples did not proceed to completion; some of the polar groups are believed to be attached to immobile sites on the surface. The observation that the surface energy decreases while the oxygen content as measured by XPS increases on storage is proposed to be related to two factors. First, the driving force for reorientational movement of treated polymer chains in FEP acts over a depth smaller than the XPS signal depth; the mobile oxygen-containing groups thus move away from the immediate surface but stay within the XPS analysis depth. Second, oxidative reactions are believed to continue for extended periods of time following plasma treatment; these reactions, which originate from radicals, cause uptake of oxygen over entended periods of time. |
| 语种 | 英语 |
| WOS记录号 | WOS:A1991GQ89400017 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/43795]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | GRIESSER, HJ |
| 作者单位 | 1.CHINESE ACAD SCI,INST CHEM,BEIJING,PEOPLES R CHINA 2.CHINESE ACAD SCI,DIV MAT SCI & TECHNOL,BEIJING,PEOPLES R CHINA |
| 推荐引用方式 GB/T 7714 | GRIESSER, HJ,DA, YX,HUGHES, AE,et al. SHALLOW REORIENTATION IN THE SURFACE DYNAMICS OF PLASMA-TREATED FLUORINATED ETHYLENE PROPYLENE POLYMER[J]. LANGMUIR,1991,7(11):2484-2491. |
| APA | GRIESSER, HJ,DA, YX,HUGHES, AE,GENGENBACH, TR,&MAU, AWH.(1991).SHALLOW REORIENTATION IN THE SURFACE DYNAMICS OF PLASMA-TREATED FLUORINATED ETHYLENE PROPYLENE POLYMER.LANGMUIR,7(11),2484-2491. |
| MLA | GRIESSER, HJ,et al."SHALLOW REORIENTATION IN THE SURFACE DYNAMICS OF PLASMA-TREATED FLUORINATED ETHYLENE PROPYLENE POLYMER".LANGMUIR 7.11(1991):2484-2491. |
入库方式： OAI收割
来源：化学研究所
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