Chemical Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Full-color CPL composite films prepared using helical polymers, fluorescein and substrates have excellent mechanical processing properties. They exhibit matrix universality, low cost, multi-stimulus responsiveness to UV, heat, acid/base.
Язык: Английский
Angewandte Chemie, Год журнала: 2024, Номер 136(39)
Опубликована: Июнь 27, 2024
Abstract Porous frameworks with controlled pore structure and tunable aperture are greatly demanded. However, precise synthesis of this kind materials is a formidable challenge. Herein, we report the fabrication two‐dimensional (2D) supramolecular polymer using precisely synthesized rod‐like helical polyisocyanide as link. Four three‐arm star‐shaped polyisocyanides degree polymerization 10, 20, 30 40, having 2‐ureido‐4[1H]‐pyrimidinone (UPy) terminals were synthesized. 2D‐Crystalline apertures 5.3, 10.1, 13.9, 19.1 nm respectively obtained through intermolecular hydrogen bonding interaction between terminal Upy units. The dependent on length backbone. Thus, well‐defined uniform hexagonal pores obtained, proved by small‐angle X‐ray scattering (synchrotron radiation facility), atomic force microscopy, Brunauer–Emmett–Teller analyses. large used to purify nanomaterials immobilize biomacromolecules. For instance, membranes could size‐fractionation silver nanoparticles into very low dispersity. facilitated inclusion myoglobin enhanced stability catalytic activity.
Язык: Английский
Процитировано
3
Nanoscale, Год журнала: 2024, Номер 16(30), С. 14269 - 14274
Опубликована: Янв. 1, 2024
The precise control of the chirality polymer assemblies is a challenge faced by scientists and has received significant attention in recent years. In this study, we employed polymerization-induced chiral self-assembly (PICSA) method to create side-chain cyanobiphenyl (CB) block copolymer (BCP) assemblies. flexible spacers CB monomers were regulated exhibit two distinct odd-even effects supramolecular asymmetrical arrangement mesogens inside BCP research results indicated that liquid crystalline properties significantly influence magnitude sign their chiroptical properties. These findings have implications for design with designable functions.
Язык: Английский
Процитировано
3
Science China Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Фев. 8, 2025
Язык: Английский
Процитировано
0
ACS Omega, Год журнала: 2025, Номер unknown
Опубликована: Фев. 17, 2025
Advanced functional polymeric materials can possess chemical reactivity, catalytic properties, photosensitivity, electrical conductivity, biological activity, biocompatibility, pharmacological selective separation, and energy conversion of traditional polymers. Because these the production characterization polymers has become an essential part modern industry advanced technology. Methacrylate are highly versatile owing to their exceptional properties including superior optical transparency, excellent light transmission, robust thermal stability. This study investigates a class methacrylate coincorporating coumarin tyrosine units, aiming explore synergistic effects moieties on polymers' optoelectronic properties. The were synthesized characterized, revealing significant alterations in electronic structure due incorporation coumarin-tyrosine hybrids into backbone. Optical assessed via UV-vis photoluminescence spectroscopy, demonstrating solvent-dependent red shifts intense emission peaks, indicative efficient charge transfer between coumarin. results highlight potential novel for applications optoelectronics offer new insights synthesis, functionalization, performance. In this study, diode observed that exhibited effective behavior with calculated ideality factors (n) 2.68 2.78, barrier heights (Φb) 0.45 0.46 eV, respectively, indicating more height compared previously reported studies. work contributes expanding knowledge tunable semiconducting polymers, paving way future innovations material science.
Язык: Английский
Процитировано
0
Chemical Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Full-color CPL composite films prepared using helical polymers, fluorescein and substrates have excellent mechanical processing properties. They exhibit matrix universality, low cost, multi-stimulus responsiveness to UV, heat, acid/base.
Язык: Английский
Процитировано
0