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2D-to-3D Shape Transformation of Room-Temperature- Programmable Shape-Memory Polymers through Selective Suppression of Strain Relaxation
关键字：Shape-Memory Polymers
Although shape-memory polymers (SMPs) can alter their shapes upon stimulation of environmental signals, complex shape transformations are usually realized by using advanced processing technologies (four-dimensional printing) and complicated polymer structure design or localized activation. Herein, we demonstrate that stepwise controlled complex shape transformations can be obtained from a single...
http://www.polymer.cn/research/sy_info19569 |
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Single-Chain Polymers Achieved from Radical Polymerization under Single-Initiator Conditions
关键字：SIP, Single-Chain Polymers
Radical polymerization from a single initiator molecule in a microenvironment is a nearly ideal system in which bimolecular termination, solution concentration, and viscosity changes could be neglected. In this study, we provide two facile methods of preparing polymers via atom-transfer radical polymerization (ATRP) under single-initiator conditions: tether initiators on planar substrates at sup...
http://www.polymer.cn/research/sy_info19135 |
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The self-assembly effect in NLO polymers containing isolation chromophores: enhanced NLO coefficient and stability
关键字：NLO polymers, isolation chromophores
In this paper, a facile route was designed to prepare four new NLO polyaryleneethynylenes, which were constructed by two different chromophore moieties with the regular AB structure, to achieve a high NLO coefficient according to our recent work on ‘‘isolation chromophores’’. Meanwhile, normal aromatic rings or perfluoroaromatic rings were also introduced as isolation groups to investigate t...
http://www.polymer.cn/research/sy_info17340 |
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The self-assembly effect in NLO polymers containing isolation chromophores: enhanced NLO coefficient and stability
关键字：NLO polymers, isolation chromophores
In this paper, a facile route was designed to prepare four new NLO polyaryleneethynylenes, which were constructed by two different chromophore moieties with the regular AB structure, to achieve a high NLO coefficient according to our recent work on ‘‘isolation chromophores’’. Meanwhile, normal aromatic rings or perfluoroaromatic rings were also introduced as isolation groups to investigate t...
http://www.polymer.cn/research/sy_info17339 |
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The self-assembly effect in NLO polymers containing isolation chromophores: enhanced NLO coefficient and stability
关键字：NLO polymers, isolation chromophores
In this paper, a facile route was designed to prepare four new NLO polyaryleneethynylenes, which were constructed by two different chromophore moieties with the regular AB structure, to achieve a high NLO coefficient according to our recent work on ‘‘isolation chromophores’’. Meanwhile, normal aromatic rings or perfluoroaromatic rings were also introduced as isolation groups to investigate t...
http://www.polymer.cn/research/sy_info17338 |
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β-cyclodextrin and its hyperbranched polymers-induced micro/nanopatterns and tunable wettability on polymer surfaces
关键字：β-cyclodextrin,hyperbranched polymers,micro/nanopatterns
This paper reports an efficient strategy to fabricate micro/nanopatterns on the surfaces of polymers for obtaining tunable wettability. Tepee-like bundles as micro/nanopatterns, composed of irregular polygon ‘‘podium’’ and ‘‘valley’’ structures, are formed by adding b-cyclodextrin (b-CD) or its hyperbranched polymers [HBP(b-CD)s] into a polystyrene (...
http://www.polymer.cn/research/sy_info14834 |
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Bulk versus fiber crystal structures of polymers and biopolymers
关键字：biopolymers, Bulk versus fiber crystal structures of polymers
Processing of crystalline polymers such as injection moulding or fibre spinning produces usually the mechanically more stable crystal modification of any polymer. Also, especially in fibre spinning, the chain axis is supposed to remain...
http://www.polymer.cn/research/ct_info443 |
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Intrinsic Self-healing of Covalent Polymers Based on Alkoxyamines Units
关键字：intrinsic self-healing, covalent polymers, alkoxyamines units
Cracks in intrinsic self-mending polymers can be healed as a result of crossover interconnection of reversible covalent bonds at the broken faces. Typical reversible covalent bonds served as basis for self-healing of ...
http://www.polymer.cn/research/dis_info17222 |
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Processing Routes for Achieving Multi-functionality in Reinforced Polymers and Composite Structures
关键字：multi-functionality, processing, nano-reinforcement, polymers composites
Multi-functionality is the combination of different properties in one material so as to make it suitable for the use in applications in which different loading conditions must be sustained.Besides the mechanical load ...
http://www.polymer.cn/research/dis_info17183 |
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Local Coil-helix Transition of Semiflexible Polymers Confined in Spheres
关键字：Semiflexible Polymers，Local Coil-helix Transition，Simulation
An off-lattice Monte Carlo method is used to study the conformations of semiflexible polymer chains confined in spheres. The local coil-helix transition is observed for the chains with moderate rigidity confined in small spheres, ...
http://www.polymer.cn/research/dis_info14424 |
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