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Synthesis of High-Performance Polymers via Copper-Catalyzed Amination of Dibromoarenes with Primary Aromatic Ether Diamines
关键字：poly(imino ether ketone)s, heat-resistant polymer, copper-catalysis, foam.
In this paper, we introduce three high-performance polymers with similar structures, poly(imino ether ketone) (PIEK)s, which are synthesized by the ligand free copper-catalyzed C-N cross coupling reaction of aryl halides and primary aromatic diamines at moderate temperature. The influence of the solvents, base, temperature, and catalyst ligands on the polycondensation reaction is investigated. T...
http://www.polymer.cn/research/sy_info19473 |
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A Main-Chain de Vries Smectic Liquid Crystal Polymer Prepared by Hoveyda-Grubbs Catalyst-Initiated Acyclic Diene Metathesis Polymerization
关键字：ADMET; de Vries Smectic; fibers; liquid-crystalline polymers (LCP)
A main-chain liquid crystalline polymer has been obtained by applying a Hoveyda–Grubbs
2nd generation catalyst in acyclic diene metathesis polymerization (ADMET) of a monomer containing on one end a terminal dimethylvinylsilyl group and at the other end a terminal C-C double bond.
http://www.polymer.cn/research/sy_info19352 |
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Poly(9,9’-diheylfluorene carbazole) Functionalized with Reduced GrapheneOxide: Convenient Synthesis using Nitrogen-Based Nucleophiles and Potential Applications in Optical Limiting
关键字：graphene, nitrogencentered anions,nonlinear optics, nucleophilic addition, polymers
Covalently functionalized reduced graphene oxide (RGO) sheet was prepared by treating nitrogen-centered anions generated from poly(9,9’-diheylfluorene carbazole) (PCF) with
GO. The resultant hybrids with different chemical behavior were separated by centrifugation. The covalent modification was fully characterized by IR spectroscopy, UV/Vis spectroscopy, thermogravimetric analysis (TGA), Raman sp...
http://www.polymer.cn/research/sy_info17355 |
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A New Disubstituted Polyacetylene Bearing 6-Benzylaminopurine Moieties: Postfunctional Synthetic Strategy and Sensitive Chemosensor Towards Copper and Cobalt Ions
关键字：chemosensors, conjugated polymers, copper and cobalt detection, polyacetylene
A new 6-benzylaminopurine-functionalized disubstituted polyacetylene (P2) with strong green fl uorescence is successfully synthesized by utilizing the postfunctional method. The polymer is soluble in common organic solvents, and its strong green fl uorescence can be quenched by copper and cobalt ions with a detection limit down to 1.0 × 10-8 (0.64 ppb) and 3.3 × 10-8 mol L-1 (1.94 ppb), respecti...
http://www.polymer.cn/research/sy_info17337 |
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A New Disubstituted Polyacetylene Bearing 6-Benzylaminopurine Moieties: Postfunctional Synthetic Strategy and Sensitive Chemosensor Towards Copper and Cobalt Ions
关键字：chemosensors, conjugated polymers, copper and cobalt detection, polyacetylene
A new 6-benzylaminopurine-functionalized disubstituted polyacetylene (P2) with strong
green fl uorescence is successfully synthesized by utilizing the postfunctional method. The
polymer is soluble in common organic solvents, and its strong green fl uorescence can be
quenched by copper and cobalt ions with a detection limit
down to 1.0 × 10 ? 8 (0.64 ppb) and 3.3 × 10 ? 8 mol L ? 1 (1.94 ppb),
re...
http://www.polymer.cn/research/sy_info17336 |
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One-Step Synthesis of a Thienylenepyridazinylenethienylene-based Coil-Rod-Coil Copolymer with Enhanced Emission and Improved Fluorescence Stability
关键字：aggregation锛宐lock copolymers锛宑onjugated polymers锛宖luorescence锛宱ligomers
A new coil-rod-coil copolymer is synthesized via Sonogashira coupling using one-step methodology. The copolymer PEG-OEPETPT-PEG constitutes of poly(ethylene glycol) (PEG) as the coil block, and oligo[p-(ethynylenephenyleneethynylene)-alt-(thienylenepyridazinylenethienylene)] (OEPETPT) as the rod segment. The conjugated polymer PEPETPT with the same conjugated building blocks is also synthesized fo...
http://www.polymer.cn/research/sy_info15297 |
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Creating Filler/Matrix Interfacial Bonding by Metal Ion Coordination : Graphene Oxide/Polymer Nanocomposites with Significantly Enhanced Mechanical Properties
关键字：Graphene oxide, Polymers, Nanocomposites, Coordination, Mechanical properties
Graphene, the most recently found allotrope of the carbon family, has provoked research interest worldwide due to its outstanding electronic, mechanical and thermal propertiescl].Nowadays, a functionalized graphene derivative, graphene o...
http://www.polymer.cn/research/sy_info15175 |
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Creating Filler/Matrix Interfacial Bonding by Metal Ion Coordination : Graphene Oxide/Polymer Nanocomposites with Significantly Enhanced Mechanical Properties
关键字：graphene oxide, polymers, nanocomposites, coordination, mechanical properties
Graphene, the most recently found allotrope of the carbon family, has provoked research interest worldwide due to its outstanding electronic, mechanical and thermal propertiescl].Nowadays, a functionalized graphene derivative, graphene o...
http://www.polymer.cn/research/dis_info17240 |
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软金属配位高分子:新型功能材料
关键字：Coordiantion Polymers；Supramolecules；PIC micelles；Fluorescence；Electrochemistry
软金属配位高分子（SCSP）是在溶液中存在的金属配位超分子结构，是最近五年超分子化学领域迅速崛起的一个研究热点。我们通过静电作用实现了SCSP有效组装，制备出成具有独特功能的软物质微钠器件。例如，通过形成静电复合胶束， 含有铕离子的金属配位超分子荧光可以显著增强；含有铁离子的胶束能够实现氧化还原可控的释放与摄取。
http://www.polymer.cn/research/dis_info16350 |
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Drug release from films and electrospun fiber sheets of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
关键字：Drug delivery, Electrospinning, Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), Biomedical polymers, Tetracycline hydrochloride
Films and electrospun fiber sheets made from poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) are explored as drug delivery vehicles using tetracycline hydrochloride as a model drug. In order to assist in choosing suitable process conditions ...
http://www.polymer.cn/research/dis_info11726 |
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