نتایج جستجو برای: high performance polymers

تعداد نتایج: 2907925  

Journal: :Nanoscale 2015
Yong Ma Hong-Xia Chen Feng Zhou Hua Li Huilong Dong You-Yong Li Zhi-Jun Hu Qing-Feng Xu Jian-Mei Lu

Multilevel organic memories have attracted considerable interest due to their high capacity of data storage. Despite advances, the search for multilevel memory materials still remains a formidable challenge. Herein, we present a rational design and synthesis of a class of polymers containing an azobenzene-pyridine group (PAzo-py) and its derivatives, for multilevel organic memory storage. In th...

Journal: :journal of structural engineering and geo-techniques 2014
jamal ahmadi reza naghdi2

recent tendencies in concrete technology have been towards to high- performance concrete with a low water-cement ratio. however, high performance concretes have some problems. one of the problems is early-age cracking due to autogenous shrinkage. this study presents the results of an experimental investigation carried out to evaluate the autogenous shrinkage of high-strength concrete. accordin...

Journal: :Advanced materials 2015
Asli Ugur Ferhat Katmis Mingda Li Lijun Wu Yimei Zhu Kripa K Varanasi Karen K Gleason

Electronic conduction in conjugated polymers is of emerging technological interest for high-performance optoelectronic and thermoelectric devices. A completely new aspect and understanding of the conduction mechanism on conducting polymers is introduced, allowing the applicability of materials to be optimized. The charge-transport mechanism is explained by direct experimental evidence with a ve...

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