نتایج جستجو برای: polymer synthesis

تعداد نتایج: 495523  

Journal: :Polymer Chemistry 2021

Organocatalysts facilitate the synthesis of polythionolactones; oxidative crosslinking yields a degradable polymer foam.

Journal: :Chemical communications 2008
Nicolas Schaeffer Bien Tan Calum Dickinson Matthew J Rosseinsky Anna Laromaine David W McComb Molly M Stevens Yiqian Wang Laure Petit Catherine Barentin David G Spiller Andrew I Cooper Raphaël Lévy

The synthesis of fluorescent water-soluble gold nanoparticles by the reduction of a gold salt in the presence of a designed polymer ligand is described, the size and fluorescence of the particles being controlled by the polymer to gold ratio; the most fluorescent nanomaterial has a 3% quantum yield, a 1.1 nm gold core and a 6.9 nm hydrodynamic radius.

Journal: :Advanced materials 2009
Mutsumi Yoshida Kyung-Ho Roh Suparna Mandal Srijanani Bhaskar Dongwoo Lim Himabindu Nandivada Xiaopei Deng Joerg Lahann

Biocompatible anisotropic polymer particles with bipolar affinity towards human endothelial cells are a novel type of building blocks for microstructured bio-hybrid materials. Functional polarity due to two biologically distinct hemispheres has been achieved by synthesis of anisotropic particles via electro-hydrodynamic co-jetting of two different polymer solutions and subsequent selective surf...

2012
Ophelie Riou Lacramioara Zadoina Barbara Lonetti Anne-Françoise Mingotaud Marc Respaud Monique Mauzac

Magnetic hybrid liquid crystalline composites have been obtained either by thermal decomposition of a cobalt precursor in a solution containing a liquid crystal polymer or by dispersing preformed cobalt nanorods in a liquid crystal polymer matrix. The final materials are all mesomorphous and ferromagnetic. Their magnetic characteristics are compared as a function of the synthesis method.

Journal: :Chemical communications 2012
Lei Zhang Shuaibin Wu Can Li Qihua Yang

A facile synthesis of polymer-inorganic hybrid hollow mesoporous nanospheres was developed based on the entrapment of a dissolved polymer core template in the framework during the assembly process of the hybrid hollow nanospheres for efficient and size-selective enrichment of target peptides/proteins from complex biosamples.

2016
Jyoti Chaudhary Swati Purohit Radha Chaudhary

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY COPOLYMERS OF MA/EA/BA WITH N-SUBSTITUTED MALEIMIDE: SYNTHESIS, CHARACTERIZATION AND EFFECT ON THE THERMAL PROPERTIES Jyoti Chaudhary*, Swati Purohit, Radha Chaudhary * Department of Polymer Science, M.L.S.U.,Udaipur (Raj.) India Department of Polymer Science, M.L.S.U.,Udaipur (Raj.) India Department of Chemistry, GITS, Udaipur...

Journal: :Chemical communications 2009
Cheng-Hsuan Lai I-Che Wu Chia-Cheng Kang Jyh-Fu Lee Mel-Lin Ho Pi-Tai Chou

The synthesis of nanocrystal-polymer nanocomposites is reported, in which 2-(2-ethoxyethoxy)ethoxy modified polythiophene serves as the protecting group for dispersion and homogeneous size distribution of the nanoparticles, showing potential of this polymer-based material in optoelectronics and microelectronics.

Journal: :Chemical communications 2010
Gorakh S Yellol Tsai-Wen Chung Chung-Ming Sun

A novel intramolecular cyclization was discovered during the reaction of soluble polymer supported bis-Boc-guanidines with amines under microwave irradiation, leading to an oxadiazinone skeleton. The cyclized polymer conjugates have been further utilized to generate substituted 1,3,5-oxadiazinones by a traceless synthesis.

Journal: :Journal of sports sciences 2008
Francis B Stephens Marc Roig Gerald Armstrong Paul L Greenhaff

The aim of the present study was to determine the effect of post-exercise ingestion of a unique, high molecular weight glucose polymer solution, known to augment gastric emptying and post-exercise muscle glycogen re-synthesis, on performance during a subsequent bout of intense exercise. On three randomized visits, eight healthy men cycled to exhaustion at 73.0% (s = 1.3) maximal oxygen uptake (...

Journal: :The Journal of organic chemistry 2008
Yi-Fan Chang Chen-Yu Liu Chih-Wei Guo Yen-Chih Wang Jim-Min Fang Wei-Chieh Cheng

Solid-phase organic synthesis of polyprenols with a traceless sulfone linker is described. The polymer-bound benezenesulfinate is first linked with the "tail" building blocks of isoprenyl chlorides via S-alkylation. With use of dimsyl anion as an appropriate base, the polymer-bound alpha-sulfonyl carbanion is generated and coupled with other "body" building blocks in an efficient manner. After ...

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