Nanostructured polymers prepared using a self-assembled nanofibrillar scaffold as a reverse template

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题名:	Nanostructured polymers prepared using a self-assembled nanofibrillar scaffold as a reverse template
作者:	賴偉淇;Lai, Wei-chi;Tseng, Shen-chen;Tung, Shih-huang;Huang, Yi-en;Raghavan, Srinivasa R.
贡献者:	淡江大學化學工程與材料工程學系
日期:	2009-06-01
上传时间:	2010-08-09 18:21:46 (UTC+8)
出版者:	American Chemical Society (ACS)
摘要:	We describe the preparation of nanostructured polymeric materials by polymerizing a monomer within a scaffold composed of self-assembled nanofibrils. 1,3:2,4-Dibenzylidene sorbitol (DBS) is an inexpensive sugar derivative that can form nanofibrillar networks in a variety of organic solvents at relatively low concentrations. Here, we induce DBS nanofibrils in styrene and then thermally initiate the free-radical polymerization of the monomer. The polymerization proceeds without any evidence of macroscopic phase separation, ultimately yielding a transparent solid of polystyrene. Within this material, intact DBS nanofibrils (diameter 10-100 nm) are preserved, as shown by atomic force microscopy (AFM). The DBS fibrils can also be subsequently extracted from the polymer, leaving behind a network of nanoscale pores. The porosity of the resulting polymer has been characterized by the BET technique.
關聯:	Journal of Physical Chemistry B 113(23), pp.8026-8030
DOI:	10.1021/jp811416w
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

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