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The Chemistry of Mercaptosilanes
关键字：Mercaptosilanes Rubber
The aim of this study is to elucidate the reaction mechanism of mercaptosilanes. Model compound vulcanizationusing NMR-techniques, in-rubber investigations andresults of tire tests were used to derive a postulated catalysis cycle. The propo...
http://www.polymer.cn/research/dis_info9212 |
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Journal of Materials Chemistry 2011, 21, 6677-6682.
A series of water-soluble and cationic methoxy poly(ethylene glycol)-b-poly(g-amino-3-caprolactone) (mPEG-b-PACL) has been synthesized via ring opening polymerization of g-(carbamic acid benzyl ester)-3-caprolactone (gCAB3CL) using mPEG as a macroinitiator and Sn(Oct)2 as a catalyst, and subsequent hydrolysis of the Cbz protecting groups under acidic conditions. The well-defined structure
of copo...
http://www.polymer.cnt//ss/langmeidong/publicationsshow_2995.html |
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Chinese Journal of Chemistry 2011, 29(2), 343-350.
In this paper, aliphatic polyesters functionalized with pendant carboxylic groups were synthesized via several steps. Firstly, substituted cyclic ketone, 2-(benzyloxycarbonyl methyl)cyclopentanone (BCP) was prepared through the reaction of enamine with benzyl-2-bromoacetate, and subsequently converted into the relevant functionalized δ-valerolactone derivative, 5-(benzyloxy carbonylmethyl)-&...
http://www.polymer.cnt//ss/langmeidong/publicationsshow_2992.html |
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Journal of Material Chemistry 2009, 19, 2778–2783
A facile hard-templating route has been successfully developed to fabricate uniform hollow mesoporous silica spheres and ellipsoids by using hematite as hard template. The outer diameter of the spherical mesoporous silica particles can be well adjusted in a sub-micrometric range (typically around 100–200nm) by selecting suitable hematite particles as core templates. The thickness of the meso...
http://www.polymer.cnt//ss/langmeidong/publicationsshow_1631.html |
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Science in China Series B Chemistry 2008, 51(11), 1044-1050
The electron-withdrawing groups (EWGs) in the electrophilic alkenes employed in the Michael addition reaction are almost only CO2R, CN, COR, NO2, and SO2Ph. Although amides (CONR1R2) are also typical electron-withdrawing groups and are of great importance in organic synthesis, they are scarcely employed as the EWGs of the electrophilic alkenes in the Michael addition reaction. In this work, the Mi...
http://www.polymer.cnt//ss/langmeidong/publicationsshow_1627.html |
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Chemistry Research of Chinese University 1997, 13(1), 77-82
Poly(ethylene oxide) containing azo groups (pre-PEO) was prepared by reacting azoisobutyronitrile (AIBN) with poly(ethylene oxide) (PEG). The molecular weight of pre-PEO was depended on the reaction time, the ration of PEG to AIBN and the molecular weight of PEG. Pre-PEO decomposed in the presence of butylacrylate (BA) monomer to from poly(ethylene oxide-block-butylacrylate) copolymers (PEO-b-PBA)...
http://www.polymer.cnt//ss/langmeidong/publicationsshow_1598.html |
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Chemistry and devices of semiconducting polymer networks via photo “click” chemistry
In this report, we demonstrate the use of thiol-ene click chemistry to form robust, device-compatible cross-linked films of a semiconducting conjugated polymer (SCP).
http://www.polymer.cn/research/dis_info16593 |
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Chemistry and devices of semiconducting polymer networks via photo “click” chemistry
In this report, we demonstrate the use of thiol-ene click chemistry to form robust, device-compatible cross-linked films of a semiconducting conjugated polymer (SCP).
http://www.polymer.cn/research/dis_info16593 |
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Metallocenium Chemistry and Its Emerging Impact on Synthetic Macromolecular Chemistry
Cationic metallocenes (or metalloceniums) are a class of sandwich-type compounds with cationic metal centers, which are usually iron, cobalt, or rhodium. These unique charged complexes have received wide attention owing to both rich electrochemistry and the positive charge associated with the transition metal. They are potential building blocks for fabricating functional polyelectrolytes an...
http://www.polymer.cnt//ss/yanyi/publicationsshow_8956.html |
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Study on mechanical properties of nature rubber/ attapulgite nanocomposites
关键字：attapulgite, natural rubber, calcination, nanocomposites
In this paper, attapulgite (AT)/natural rubber (NR) nanocomposites have been prepared. Different types of attapulgite were prepared and fourier infrared spectroscopic (FTIR) and XRD were used to analyze the structure of attapulgite before&n...
http://www.polymer.cn/research/dis_info11775 |
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