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Effect of ultrasound on the microstructure of polystyrene in cyclohexane: a synchrotron small-angle X-ray scattering study
Zhang, JL; Liu, DX; Yang, GY; Han, BX; Wu, ZH; Wu ZH(吴忠华)
2007
发表期刊COLLOID AND POLYMER SCIENCE
卷号285期号:11页码:1275-1279
通讯作者Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型Article
摘要Synchrotron small-angle X-ray scattering technique has been used to study the effect of ultrasound on the microstructure of polystyrene (PS) in cyclohexane solutions. The results show that the intramolecular radius of gyration (R (g)) decreases with ultrasound, indicating the shrinkage and collapse of PS chains. There is an exponential relationship between R (g) and the molecular weight of PS (M (w)), and the exponent changes from 0.5 to 0.417, as the ultrasound time is increased. This means that the shape of PS chain changes from random coil to shrunken form. The Kratky plots also confirm the shape transformation of PS chains induced by ultrasound. Moreover, the intermolecular correlation length increases with the ultrasound time, which is indicative of the entanglement of PS chains.
关键词ultrasound polystyrene cyclohexane synchrotron small-angle X-ray scattering microstructure
学科领域Chemistry; Polymer Science
研究领域[WOS]Chemistry ; Polymer Science ; Chemistry ; Polymer Science
DOI10.1007/s00396-007-1677-x
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语种英语
研究领域[WOS]Chemistry ; Polymer Science ; Chemistry ; Polymer Science
WOS类目Chemistry, Physical ; Polymer Science
WOS记录号WOS:000248410400010
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239247
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Zhang, JL,Liu, DX,Yang, GY,et al. Effect of ultrasound on the microstructure of polystyrene in cyclohexane: a synchrotron small-angle X-ray scattering study[J]. COLLOID AND POLYMER SCIENCE,2007,285(11):1275-1279.
APA Zhang, JL,Liu, DX,Yang, GY,Han, BX,Wu, ZH,&吴忠华.(2007).Effect of ultrasound on the microstructure of polystyrene in cyclohexane: a synchrotron small-angle X-ray scattering study.COLLOID AND POLYMER SCIENCE,285(11),1275-1279.
MLA Zhang, JL,et al."Effect of ultrasound on the microstructure of polystyrene in cyclohexane: a synchrotron small-angle X-ray scattering study".COLLOID AND POLYMER SCIENCE 285.11(2007):1275-1279.
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