Macromolecular Rapid Communications
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#1Li Zhou (HFUT: Hefei University of Technology)H-Index: 8
#2Run-Tan Gao (HFUT: Hefei University of Technology)H-Index: 1
Last. Zong-Quan Wu (HFUT: Hefei University of Technology)H-Index: 27
view all 7 authors...
End-functionalization is an effective strategy for constructing functional materials. A method for chain-end functionalization of helical polycarbenes is herein developed that relied on Sonogashira coupling reaction. In this work, a family of helical polycarbenes with controlled molecular mass (Mn ) and low polydispersity (Mw /Mn ) is readily prepared using Pd(II) and the Wei-Phos ligand as initiator. The Pd(II) complex is confirmed to remain at the chain end of polycarbene. Subsequently, a seri...
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#1Sohee Park (Ewha Womans University)H-Index: 1
#2Yejin Kim (Ewha Womans University)
Last. Byoung Hoon Lee (Ewha Womans University)H-Index: 17
view all 8 authors...
The effect of atomic substitution on the optoelectronic properties of a coplanar donor-acceptor (D-A) semiconducting polymer (SPs), prepared using cyclopentadithiophene (CDT) and 2,1,3-benzothiadiazole (BT) moieties, is investigated. By substituting a carbon atom in the BT unit with CF or C-Cl, two random D-A SPs are prepared, and their optoelectronic properties are thoroughly investigated. Density functional theory calculations demonstrate that the fluorinated polymer has a slightly smaller di...
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#1Aristotelis Kamtsikakis (University of Fribourg)H-Index: 3
#2Christoph Weder (University of Fribourg)H-Index: 90
Many organisms rely on directional water transport schemes for the purpose of water retention and collection. Directional transport of water and other fluids is also technologically relevant, for example to harvest water, in separation processes, packaging solutions, functional clothing, and many other applications. One strategy to promote mass transport along a preferential direction is to create compositionally asymmetric, multi-layered, or compositionally graded architectures. In recent years...
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#1Alexander Plucinski (University of Glasgow)H-Index: 4
#2Marko Pavlovic (MPG: Max Planck Society)H-Index: 14
Last. Bernhard V. K. J. Schmidt (University of Glasgow)H-Index: 34
view all 5 authors...
The self-assembly of block copolymers constitutes a timely research area in polymer science with implications for applications like sensing or drug-delivery. Here, the unprecedented aggregation behavior of high molar mass block copolymer poly(N,N-diethylacrylamide)-b-poly(4-acryloylmorpholine) (PDEA-b-PAM) (Mn >400 kg mol-1 ) in organic solvent tetrahydrofuran (THF) is investigated. To elucidate the aggregation, dynamic light scattering, cryo-transmission electron microscopy, and turbidimetry ar...
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#1Jinwei Cao (University of Akron)H-Index: 6
#2Camilo Piedrahita (University of Akron)H-Index: 6
Last. Thein Kyu (University of Akron)H-Index: 43
view all 3 authors...
Ionic electroactive polymers (iEAPs) can generate electrical energy under bending deformations exhibiting great potential for fabricating energy harvesters from dynamic vibrating environments. According to a previous study, this flexoelectric energy-harvesting potential is explored in polymer electrolyte membrane (PEM) assemblies subjected to intermittent square wave bending modes. The above study reveals that the mechanoelectrical transduction is likely to be the consequence of ion polarization...
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#1Meike N. Leiske (Ghent University)H-Index: 8
#2Kristian Kempe (Monash University)H-Index: 39
Amino acids have emerged as a sustainable source for the design of functional polymers. Besides their wide availability, especially their high degree of biocompatibility makes them appealing for a broad range of applications in the biomedical research field. In addition to these favorable characteristics, the versatility of reactive functional groups in amino acids (i.e., carboxylic acids, amines, thiols, and hydroxyl groups) makes them suitable starting materials for various polymerization appr...
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#1Manuel Núñez-Martínez (USC: University of Santiago de Compostela)H-Index: 3
#2Sandra Arias (USC: University of Santiago de Compostela)H-Index: 11
Last. Félix Freire (USC: University of Santiago de Compostela)H-Index: 24
view all 6 authors...
The helical sense control of dynamic helical polymers such as poly(phenylacetylene)s (PPAs) is greatly affected when they are conjugated to AuNPs through a strong thiol-Au connection, which restricts conformational changes at the polymer. Thus, the classical thiol-MNP bonds must be replaced by weaker ones, such as supramolecular amide-Au interactions. A straightforward preparation of the PPA-Au nanocomposite by reduction of a preformed PPA-Au3+ complex cannot be used due to a redox reaction betw...
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Light-mediated polymerization techniques offer distinct advantages over polymerization reactions fueled by thermal energy, such as high spatial and temporal control as well as the possibility to work under mild reaction conditions. Reversible addition-fragmentation chain-transfer (RAFT) polymerization is a highly versatile radical polymerization method that can be utilized to control a variety of monomers and produce a vast number of complex macromolecular structures. The use of light to drive a...
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#1Florian V. Frieß (Saarland University)
#2Qiwei Hu (University of Freiburg)
Last. Markus Gallei (Saarland University)H-Index: 32
view all 7 authors...
In this work, a block copolymer (BCP) consisting of poly((butyl methacrylate-co-benzophenone methacrylate-co-methyl methacrylate)-block-(2-hydroxyethyl methacrylate)) (P(BMA-co-BPMA-co-MMA)-b-P(HEMA)) was prepared by a two-step atom-transfer radical polymerization (ATRP) procedure. The obtained molecular weight of the BCP was 55100 g mol-1 featuring a poly(HEMA) content of 10 mol-% and about 10 mol-% of the benzophenone methacrylate as UV cross-linker within the statistical copolymer segment. BC...
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#1Tianmeng Liu (Donghua University)
#2Hong HuangH-Index: 5
Last. Zuming Hu (Donghua University)H-Index: 18
view all 5 authors...
Nature has provided many delicate strategies for optimizing the structural characteristics of biological materials. One such strategy is the strengthening and toughening of matrix materials by aduandant and hierarchically arranged non-covalent crosslinking. However, efficient strengthening and toughening of high-performance aromatic polymers by non-covalent bonds has rarely been reported yet. Herein, we report the preparation and characterizations of a metal coordination bonds crosslinked polybe...
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