Highly filled nano-CdS/polystyrene nanocomposite film with self-organization behavior

Highly filled polystyrene (PS) composite film with a nano-CdS loading of 20wt.% can be obtained when a certain mercaptan is applied to the particles' surfaces. Because of a strong electron transfer interaction between the modified CdS nanoparticles and the aliphatic carbons in PS, self-organiza...

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Bibliographic Details
Published in:Polymers & polymer composites 2003-01, Vol.11 (6), p.441-448
Main Authors: Liang, Hai Chun, Rong, Min Zhi, Zhang, Ming Qiu, Zeng, Han Min, Xiang, Hong, Wang, Shu Feng, Gong, Qi Huang
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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Summary:Highly filled polystyrene (PS) composite film with a nano-CdS loading of 20wt.% can be obtained when a certain mercaptan is applied to the particles' surfaces. Because of a strong electron transfer interaction between the modified CdS nanoparticles and the aliphatic carbons in PS, self-organization of the nanoparticles is perceivable in the composites. As a result, the ultraviolet/visible absorption edge of the treated nano-CdS/PS composites is blue-shifted in addition to the shift caused by quantum size effect. The fluorescence emission peak is accompanied by some fine structures and becomes red-shifted and narrower. Unlike conventional nanocomposites that generally contain low concentrations of nanoparticles (less than 10wt.%), the present approach greatly improves the scope for cooperative behavior of the nanoparticles.
ISSN:0967-3911
1478-2391
DOI:10.1177/096739110301100603