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STUDY ON THE LB FILMS OF A HAIRY-ROD LADDER POLYSILSESQUIOXANE WITH TRIPHENYLENE SIDE GROUPS
Zhang Xiaojing1; Jia Tiangang1; Han, Charles C.2; Xie Ping2; Zhang Rongben2
2009-06-20
Source PublicationACTA POLYMERICA SINICA
ISSN1000-3304
Issue6Pages:506-512
AbstractA novel kind of "hairy-rod" ladder polysilsesquioxane (LPSQ) with alkyl substituted triphenylene side groups formed a stable monolayer on the air-water interface, and the effects of temperature, solvents and concentration of LPSQ solution on pi-A isotherm curves were investigated. The monolayers of LPSQ can be successfully transferred onto hydrophobic surface of silicon wafer or quartz plate to develop a very stable and uniform Y-type Langmuir-Blodgett (LB) film when using toluene as the spreading solvent at proper surface pressure. High stability of LPSQ LB films is confirmed by the fact that the intensity of UV absorption does not decay within several months and AFM image shows uniform and compact films without noticeable defects. The in-plane anisotropy was monitored by the combination of polarized UV and fluorescence spectroscopy, revealing that the backbones of LPSQ adopted a preferential orientation parallel to the dipping direction with an optimum orientation parameter S of 0.42. Furthermore,the stable and uniform LB films of LPSQ with the triphenylene side groups promise to be a fine one-dimensional molecular/nano-wire material.
KeywordLadder Polymers Polysiloxanes Triphenylene Lb Films
Indexed BySCI
Language英语
WOS IDWOS:000267093300002
PublisherSCIENCE 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/121111/67614
Collection中国科学院化学研究所
Corresponding AuthorZhang Xiaojing
Affiliation1.Zhengzhou Univ Light Ind, Coll Mat & Chem Engn, Henan Prov Key Lab Surface & Interface Sci, Zhengzhou 450002, Peoples R China
2.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhang Xiaojing,Jia Tiangang,Han, Charles C.,et al. STUDY ON THE LB FILMS OF A HAIRY-ROD LADDER POLYSILSESQUIOXANE WITH TRIPHENYLENE SIDE GROUPS[J]. ACTA POLYMERICA SINICA,2009(6):506-512.
APA Zhang Xiaojing,Jia Tiangang,Han, Charles C.,Xie Ping,&Zhang Rongben.(2009).STUDY ON THE LB FILMS OF A HAIRY-ROD LADDER POLYSILSESQUIOXANE WITH TRIPHENYLENE SIDE GROUPS.ACTA POLYMERICA SINICA(6),506-512.
MLA Zhang Xiaojing,et al."STUDY ON THE LB FILMS OF A HAIRY-ROD LADDER POLYSILSESQUIOXANE WITH TRIPHENYLENE SIDE GROUPS".ACTA POLYMERICA SINICA .6(2009):506-512.
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