نتایج جستجو برای: inorganic polymer

تعداد نتایج: 165385  

2015
Eman Alzahrani

The monolithic column is a single piece of a continuous rigid porous polymer that possesses an interconnected skeletal structure and contains pores. According to their components, monolithic materials can be divided into organic polymer-based monoliths and inorganic silica-based monoliths. This review focuses on silica-based monolith with special emphasis on the preparation. Moreover, this revi...

2017
Theodora Krasia-Christoforou

© Springer International Publishing Switzerland 2015 C.-S. Kim et al. (eds.), Hybrid and Hierarchical Composite Materials, DOI 10.1007/978-3-319-12868-9_2 T. Krasia-Christoforou () Department of Mechanical and Manufacturing Engineering, University of Cyprus, 75, Kallipoleos Avenue, P.O. Box 20537, 1678 Nicosia, Cyprus e-mail: [email protected] Abstract Hybrid materials generated via the combina...

Journal: :Chemical Society reviews 2009
Takashi Uemura Nobuhiro Yanai Susumu Kitagawa

Recent developments in polymerizations within the nanochannels of porous coordination polymers (PCPs) are covered in this tutorial review. The characteristic features of PCPs are regular structures, controllable channel sizes and shapes, a designable surface functionality, and flexible frameworks, which can be utilized for precision polymer synthesis and specific polymer confinement. This revie...

Journal: :Angewandte Chemie 2014
Changbum Jo Yongbeom Seo Kanghee Cho Jaeheon Kim Hye Sun Shin Munhee Lee Jeong-Chul Kim Sang Ouk Kim Jeong Yong Lee Hyotcherl Ihee Ryong Ryoo

A widely employed route for synthesizing mesostructured materials is the use of surfactant micelles or amphiphilic block copolymers as structure-directing agents. A versatile synthesis method is described for mesostructured materials composed of ultrathin inorganic frameworks using amorphous linear-chain polymers functionalized with a random distribution of side groups that can participate in i...

Journal: :Journal of the American Chemical Society 2011
S Neyshtadt J P Jahnke R J Messinger A Rawal T Segal Peretz D Huppert B F Chmelka G L Frey

The chemical compositions and structures of organic-inorganic interfaces in mesostructurally ordered conjugated polymer-titania nanocomposites are shown to have a predominant influence on their photovoltaic properties. Such interfaces can be controlled by using surfactant structure-directing agents (SDAs) with different architectures and molecular weights to promote contact between the highly h...

M. Mohammadizadeh V. Rezazadeh

Dispersing nanoparticles in a polymer matrix is intrinsically challenging due to unfavorable entropic interactions between the matrix and the nanoparticle. In this research dispersion of nanoparticles in polymer matrix was studied and the effect of dispersion on properties was investigated. The properties of polymer composite depend on the type, size, shape, concentration of nanoparticles, and ...

2009
Takeshi Otsuka Yoshiki Chujo

Highly transparent and homogeneous hybrids containing a single nano-sized inorganic oxide domain were synthesized from poly(methyl methacrylate) (PMMA) and aqueous dispersed zirconium oxide nanocrystals (ZrO2-NCs) in the presence of a coupling agent, 3-(methacryloxy)propyl-trimethoxysilane (MPTS), which was grafted onto the surface of ZrO2-NCs by zirconium hydroxide (Zr-OH) surface groups. The ...

2013
K. D. G. Imalka Jayawardena Lynn J. Rozanski Chris A. Mills Michail J. Beliatis Ravi P. Silva

Recent developments in solution processable single junction polymer solar cells have led to a significant improvement in power conversion efficiencies from 5% to beyond 9%. While much of the initial efficiency improvements were driven through judicious design of donor polymers, it is the engineering of device architectures through the incorporation of inorganic nanostructures and better process...

Journal: :Advanced materials 2016
Yanan Wang Juan He Hao Chen Jiangshan Chen Ruidong Zhu Pin Ma Andrew Towers Yuan Lin Andre J Gesquiere Shin-Tson Wu Yajie Dong

A simple yet general swelling-deswelling microencapsulation strategy has been developed to achieve well dispersed and intimately passivated crystalline organic-inorganic perovskites nanoparticles within polymer matrixes and results in a series of highly luminescent CH3 NH3 PbBr3 (MAPbBr3 )-polymer composite films with unprecedented water and thermal stabilities and superior color purity.

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