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[Reactive and Functional Polymers]RAFT polymerization and dually responsive behaviors of terpyridine-containing PNIPAAm copolymers in dilute solutions
Introduction of new components is an effectiveway to gain new functionalities and to regulate the
properties of responsive polymers. In the presentwork, a RAFT polymerization approach to terpyridine-containing poly(N-isopropyl acrylamide) (PNIPAAm) copolymers was developed and the dually responsive behavior of the obtained polymer to temperature variation and metal ions in dilute solutions were ...
http://www.polymer.cnt//ss/zhouhongwei/publicationsshow_10056.html |
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Synthesis of High-Performance Polymers via Copper-Catalyzed Amination of Dibromoarenes with Primary Aromatic Ether Diamines
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.cnt//ss/changguanjun/publicationsshow_9972.html |
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Synthesis of indole-based functional polymers with well-defined structures via a catalyst-free C–N coupling reaction
Poly(N-arylene diindolylmethane)s (PMDINs) with precise structures and high molecular weights (Mw up to 389 200) in high yields (up to 95%) were synthesized by the catalyst-free nucleophilic substitution polycondensation of 3,30-diindolylmethane with different activated difluoro monomers via a C–N coupling reaction process. A model reaction was carried out to assist in determining the optimal r...
http://www.polymer.cnt//ss/changguanjun/publicationsshow_9968.html |
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[Chem. Soc. Rev.] Supramolecular shape memory hydrogels: A new bridge between stimuli-responsive polymers and supramolecular chemistry
Supramolecular shape memory hydrogels (SSMHs)
refer to shape memory polymers, in which temporary shapes are stabilized by
reversible crosslinks such as supramolecular interactions and dynamic covalent
bonds. Following a brief introduction of the conventional shape memory polymers
(SMPs), this tutorial review is focused to summarize a recent advancement on various
reversible crosslinks employed to ...
http://www.polymer.cnt//ss/chentaogroup/publicationsshow_9932.html |
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Crystalline Regio-/Stereoregular Glycine-Bearing Polymers from ROMP: Effect of Microstructures on Materials Performances.
Synthesis of amino acid or peptide-bearing polymers with controlled microstructures is still a long-going challenge in polymer chemistry in contrast to natural biopolymers with exactly controlled microstructures like proteins and DNA. Here, a series of new glycine-substituted cyclooctenes monomers were designed and synthesized. Ring-opening metathesis polymerizations (ROMP) of all 3-substituted ...
http://www.polymer.cnt//ss/taoyouhua/publicationsshow_9884.html |
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A Series of Exceptionally Robust Luminescent Coordination Polymers based on a Bipyridinedicarboxylate Ligand and Rare Earth Metal Ions
A series of three-dimensional rare-earth coordination polymers, [M2(bpdc)3(H2O)4] (M = Y [1], Sm [2], Eu [3], Gd [4], Tb [5], Dy [6], Er [7], and Yb [8]) were synthesized by solvothermal reactions of 2,2′-bipyridine-5,5′-dicarboxylate (bpdc) with corresponding metal salts. Single-crystal and powder X-ray diffraction analyses demonstrated that these coordination polymers are isostructural. The ca...
http://www.polymer.cnt//ss/zhaoxuebo/publicationsshow_9839.html |
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Second ligands-assisted structural variation of entangled coordination polymers with polycatenated or polythreaded features
The self-assembly of transition metal salts with dicarboxylate ligands and second ligands afford a series of entangled coordination frameworks based on different metal clusters, namely, [Ni2(oba)2(bpy)2(H2O)2]·(DMF)(H2O)2 (1), [Ni2(oba)2(bpy)2(sa)(H2O)2]·(H2O)4 (2), [Cu5(oba)4(bpy)5(pca)2(H2O)4]·(H2O)9 (3), [Co3(oba)2(bpy)2(dbca)2]·(H2O)6 (4), [Co3(oba)2(dbca)2(H2O)] (5...
http://www.polymer.cnt//ss/zhaoxuebo/publicationsshow_9832.html |
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Molecular Origin of the Shape Memory Properties of Heat-shrink Crosslinked Polymers as Revealed by Solid-state NMR
Understanding the shape memory properties of heat-shrink polymers (HSPs)
at the molecular level is crucial for the design and synthesis of advanced HSP
materials. Herein, we employed a
variety of in situ variable-temperature (VT) solid-state nuclear magnetic
resonance (NMR) techniques, in combination with other methods, to investigate
the evolution of the individual components of a poly(ethyl...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_9768.html |
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[Chem. Commun.] A new avenue to the synthesis of GAG-mimicking polymers highly promoting neural differentiation of embryonic stem cells
A new strategy for the fabrication of glycosaminoglycan (GAG) analogs was proposed by copolymerizing the sulfonated unit and the glyco unit, ‘splitted’ from the sulfated saccharide building blocks of GAGs. The synthetic polymers can promote cell proliferation and neural differentiation of embryonic stem cells with the effects even better than those of heparin.
http://www.polymer.cnt//ss/gchen/publicationsshow_9749.html |
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[J. Mater. Chem. ] Facile preparation of cancer-specific polyelectrolyte nanogels from natural and synthetic sugar polymers
Glyco-nanogels are glycopolymer-decorated nanoparticles of three-dimensional cross-linked networks, which have attracted ever-increasing interest of the biomedical-related community. However, most of the current reported glycosylated nanogels are prepared by copolymerization of glycopolymers with co-monomers and cross-linkers. Physically self-assembled glyco-nanogels remain a big challenge and a...
http://www.polymer.cnt//ss/gchen/publicationsshow_9746.html |
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