Results 11 to 20 of about 34,840 (283)

Thermo‐responsive topological metamorphosis in covalent‐and‐supramolecular polymer architectures

open access: yesAggregate, 2022
Topological metamorphosis represents a powerful approach to modulate the properties of polymers. However, it still remains a major challenge to achieve the tunability of bulk mechanical properties via topological transformation in supramolecular polymer ...
Yongming Wang   +7 more
doaj   +2 more sources

How to Determine the Role of an Additive on the Length of Supramolecular Polymers?

open access: yesOrganic Materials, 2020
In polymer chemistry, modulation of sequence and control over chain length are routinely applied to alter and fine-tune the properties of covalent (co)polymers.
Elisabeth Weyandt   +5 more
doaj   +1 more source

Hierarchical Self-Assembled Structures from Diblock Copolymer Mixtures by Competitive Hydrogen Bonding Strength

open access: yesMolecules, 2018
In this work we prepared poly(styrene–b–vinylphenol) (PS-b-PVPh) by sequential anionic living polymerization and poly(ethylene oxide-b-4-vinylpyridine) (PEO-b-P4VP) by reversible addition fragmentation chain transfer polymerization (RAFT) by ...
Tzu-Chun Tseng, Shiao-Wei Kuo
doaj   +1 more source

Second-virial theory for shape-persistent living polymers templated by discs [PDF]

open access: yesPhys. Rev. E 104, 054505 (2021), 2021
Living polymers composed of non-covalently bonded building blocks with weak backbone flexibility may self-assemble into thermoresponsive lyotropic liquid crystals. We demonstrate that the reversible polymer assembly and phase behavior can be controlled by the addition of (non-adsorbing) rigid colloidal discs which act as an entropic reorienting ...
arxiv   +1 more source

Aggregation‐induced emission polymer systems with circularly polarized luminescence

open access: yesAggregate, 2023
Functional materials with circularly polarized luminescence (CPL) have attracted tremendous attention due to their promising applications in three‐dimensional displays, chiral recognition and catalysis, photoelectronic devices, contrast imaging ...
Hewei Yan   +4 more
doaj   +1 more source

Supramolecular Systems Containing B–N Frustrated Lewis Pairs of Tris(pentafluorophenyl)borane and Triphenylamine Derivatives

open access: yesOrganic Materials, 2021
The introduction of a chemical additive to supramolecular polymers holds high potential in the development of new structures and functions. In this regard, various donor- and acceptor-based molecules have been applied in the design of these noncovalent ...
P. Chidchob   +8 more
doaj   +1 more source

Construction of Ultrastable Conjugated Microporous Polymers Containing Thiophene and Fluorene for Metal Ion Sensing and Energy Storage

open access: yesMicromachines, 2022
In this study, we have used the one-pot polycondensation method to prepare novel 2D conjugated microporous polymers (Th-F-CMP) containing thiophene (Th) and fluorene (Fl) moieties through the Suzuki cross-coupling reaction. The thermogravimetric analysis
Mohamed Gamal Mohamed   +9 more
doaj   +1 more source

Phase stability of a reversible supramolecular polymer solution mixed with nanospheres [PDF]

open access: yesJ. Phys.: Condens. Matter 23 (2011) 194113, 2011
Theory is presented for the phase stability of mixtures containing nanospheres and non-adsorbing reversible supramolecular polymers. This was made possible by incorporating the depletion thickness and osmotic pressure of reversible supramolecular polymer chains into generalized free-volume theory, recently developed for investigating the phase ...
arxiv   +1 more source

Self-Assembled Structures of Diblock Copolymer/Homopolymer Blends through Multiple Complementary Hydrogen Bonds

open access: yesCrystals, 2018
A poly(styrene-b-vinylbenzyl triazolylmethyl methyladenine) (PS-b-PVBA) diblock copolymer and a poly(vinylbenzyl triazolylmethyl methylthymine) (PVBT) homopolymer were prepared through a combination of nitroxide-mediated radical polymerizations and click
Wei-Chen Su   +3 more
doaj   +1 more source

Ring-o-rings: a new category of supramolecular structures with topologically tunable properties [PDF]

open access: yes, 2021
Macrochains of topologically interlocked rings with unique physical properties have recently gained considerable interest in supramolecular chemistry, biology, and soft matter. Most of the work has been, so far, focused on linear chains and on their variety of conformational properties compared to standard polymers.
arxiv   +1 more source

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