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73. Photophysical properties and morphology of fluorene-alt-benzene based conjugated polymers. G.Z.Yang, P.Chen, T.X.Liu*, M.Wang, W.Huang. Polym. Adv. Technol., 17(7-8), 544-551, 2006.
A series of fluorene-alt-benzene based conjugated main chain polymers attached chemically with different lengths of alkyl side chains on phenylene rings were designed and synthesized by a palladium catalyzed Suzuki coupling reaction. The UV-vis absorption and fluorescence spectra, thermal stability of spectral property, phase transition behavior and morphology of the synthesized polymers were inve...
http://www.polymer.cnt//ss/liutianxi/publicationsshow_519.html |
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67. Synthesis and characterization of poly(arylene ether ketone) (co)polymers containing...... F.Wang,T.L.Chen,J.P.Xu,T.X.Liu,H.Y.Jiang,Y.H.Qi,S.Z.Liu,X.Y.Li. Polymer 47(11),4148-4153,2006.
Poly(arylene ether ketone)s containing sulfonate groups were synthesized by aromatic nucleophilic polycondensation of 4,4′-difluorobenzophenone (DFK), sodium 2,5-dihydroxybenzensulfonate (SHQ) and bisphenols. Only low-molecular weight oligomer was obtained when hydroquinone (HQ) was employed as comonomer, while copolymerization of DFK, SHQ, and phenolphthalein (PL) proceeded quantitatively to hig...
http://www.polymer.cnt//ss/liutianxi/publicationsshow_498.html |
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40 Synthesis and linear rheological property of comb-like styrene-based polymers with a high degree of long-chain branching
关键字：Living polymerization; Comb-like copolymer; Linear rheological property
A series of model comb-like polymers (PSVS-g-PS) with high branching degree were synthesized by nucleophilic substitution reaction between iodinated copolymer of styrene (St) with 4-(vinylphenyl)-1-butene (VSt) (PSVSI, backbone) and living polystyrene lithium (PSLi, side chain). This method is a facile way for modular synthesis of graft copolymers based on living anionic polymerization and hydrozi...
http://www.polymer.cn/research/sy_info19558 |
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40 Synthesis and linear rheological property of comb-like styrene-based polymers with a high degree of long-chain branching
关键字：Living polymerization, Comb-like copolymer, Linear rheological property
A series of model comb-like polymers (PSVS-g-PS) with high branching degree were synthesized by nucleophilic substitution reaction between iodinated copolymer of styrene (St) with 4-(vinylphenyl)-1-butene (VSt) (PSVSI, backbone) and living polystyrene lithium (PSLi, side chain). This method is a facile way for modular synthesis of graft copolymers based on living anionic polymerization and hydrozi...
http://www.polymer.cn/research/sy_info19552 |
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Hydrolytic Degradation of Biobased Poly(butylene succinate-co-furandicarboxylate) and Poly(butylene adipate-co-furandicarboxylate) Copolyesters under Mild Conditions
关键字：biodegradable; biopolymers and renewable polymers; degradation; polyesters
It is indispensable to investigate hydrolytic degradation behavior to develop novel (bio)degradable polyesters. Biobased and biodegradable copolyesters poly(butylene adipate-co-butylene furandicarboxylate) (PBAF) and poly(butylene succinate-co-butylene furandicarboxylate) (PBSF) with BF molar fraction (/BF) between 40 and 60% were synthesized in this study. The hydrolyt...
http://www.polymer.cn/research/sy_info19502 |
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DBU-Catalyzed Biobased Poly(ethylene 2,5-furandicarboxylate) Polyester with Rapid Melt Crystallization: Synthesis, Crystallization Kinetics and Melting Behaviors.
关键字：Biobased polymers, Poly(ethylene furandicarboxylate), Crystallization
Poly(ethylene 2,5-furandicarboxylate) (PEF) is in the spotlight as a newly emerged biobased
polyester in recent years. Usually, PEF exhibits very slow and weak melt crystallization behavior. In this study, PEF synthesis via transesterification polycondensation method catalyzed by 1,8-diazabicylo[5.4.0]undec-7-ene (DBU) as an organic nonmetallic catalyst was attempted...
http://www.polymer.cn/research/sy_info19501 |
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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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