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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，block copolymers，conjugated polymers，fluorescence，oligomers
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_info15316 |
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Preparation of Fluorescent Conjugated Polymer Films with Different Emission Colors: Investigation into the Influences of Chemical Structure and Morphology
关键字：chemical structures，conjugated polymers，films，fluorescence，morphology
A series of PPV fi lms with different fl uorescent emission colors are prepared using a facile approach. Modifi ed from the conventional Wessling route, the labile sulfonium groups in the polymer precursor (pre-PPV) are partly substituted to various degrees by relatively stable methoxy groups, followed by a regular thermal elimination step to obtain PPV. Different chemical structures among these...
http://www.polymer.cn/research/sy_info15309 |
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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，block copolymers，conjugated polymers，fluorescence，oligomers
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_info15296 |
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Preparation of Fluorescent Conjugated Polymer Films with Different Emission Colors: Investigation into the Influences of Chemical Structure and Morphology
关键字：chemical structures，conjugated polymers，films，fluorescence，morphology
A series of PPV fi lms with different fl uorescent emission colors are prepared using a facile approach. Modifi ed from the conventional Wessling route, the labile sulfonium groups in the polymer precursor (pre-PPV) are partly substituted to various degrees by relatively stable methoxy groups, followed by a regular thermal elimination step to obtain PPV. Different chemical structures among these...
http://www.polymer.cn/research/sy_info15294 |
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Solvothermal synthesis and structures of three novel heterometallic microporous coordination polymers assembled from 2-hydroxy-nicotinic acid
关键字：Heterometallic polymer,Topology,Raman spectrum
Three novel heterometallic microporous coordination
polymers {M(Hnico)3M0}n (1, M = Co, M0 = K; 2, M = Ni, M0 = K; 3, M = Co, M0 = Na, Hnico is the anion of 2-hydroxy-nicotinic acid, where the proton is transferred from the phenolate hydroxy group to the
nitrogen atom of imine pyridine ring) were synthesized by
hydrothermal reaction between M(Ac)24H2O, M0OH and a multifunctional organic aromat...
http://www.polymer.cn/research/sy_info14973 |
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Synthesis and Crystal Structures of Two Heterobinuclear Nickel Polymers [NiNaL(dca)]n and [NiNaL(dca)]2n·(CH3COOCH3)n·(H2O)n
关键字：chainlike structure, dicyandiamide, heterobinuclear polymer
At the same condition, utilizing the different of base, the authors
constructed two wholly different compounds, 1 and 2. Compounds
1 and 2 are one-dimensional (1D) chainlike, while the coordination
mode of dicyandiamide is different in both complexes. In 1, the
dicyandiamide is μ1,5-dca bridged coordination mode; in 2, that is
μ1,3-dca bridged coordination mode. Two new heterobinuclear nick...
http://www.polymer.cn/research/sy_info14971 |
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Progress on High Performance Polymers Bearing Phthalazinone Moieties and Their Applicaion Technologies
关键字：high performance polymer, poly(aryl ether)s, phthalazinone, thermoplastic composites
Rising oil price and pressure to reduce emission push aerospace Original Equipment Manufacturers (OEMs) to use more and more polymer matrix composites (PMC) to reduce weight.Secondly, OEMs also try their best to reduce cost. They keep their eyes on improving repair and maintenance of PMC. Thermoplastics possess excellent comprehensive performance. First of all,OEMs prefer their high toughness,...
http://www.polymer.cn/research/dis_info18627 |
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Molecular engineering of electrophosphorescent polymers for tailoring triplet energy back trasnfer: a spiro-linked hyperbranched architecture and a series of bipolar, high-triplet energy polymer hosts
Electrophosphorescent polymers (PhPs)1 have caught extensive attentions in the field of organic light-emitting diodes because of 1) their theoretical 100% internal quantum efficiencies; 2) their low cost and efficient wet processing technologies...
http://www.polymer.cn/research/dis_info16633 |
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Dynamic Surfactants, Polymers, and Networks: in Control of Soft Matter Properties by Dynamic Covalent and Dissipative Self-Assembly
关键字：supramolecular chemistry, molecular gelators, dynamic self-assembly
The self-assembly of small molecules, polymers, proteins, nanoparticles and colloids under thermodynamic equilibrium conditions has been a powerful approach for the construction of a variety of structures of nano- to micrometer dimensions, ...
http://www.polymer.cn/research/dis_info16329 |
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SYNTHESIS AND CRYSTALLIZABILITY OF POLY(ETHYLENE GLYCOL) -b-POLY (ε-CAPROLACTONE) -POLY (ETHYLENE GLYCOL)
关键字：PEG-PCL-PEG，triblock polymers, stannous octoate, crystallizability
A family of poly (ethylene glycol)-b-poly(ε-caprolactone)-b-poly (ethylene glycol) has been prepared in high yields by a two step method. Their thermal and crystallization behaviors were studied by DSC and WXRD. The results illustrated&nbs...
http://www.polymer.cn/research/dis_info13897 |
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