Relevant bibliographies by topics / Π-stacked polymer

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  2. Dissertations / Theses
  3. Books
  4. Book chapters

Academic literature on the topic 'Π-stacked polymer'

Author: Grafiati
Published: 14 March 2023

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Journal articles on the topic "Π-stacked polymer"

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Maeda, Hazuki, Mayu Kameda, Takuji Hatakeyama, and Yasuhiro Morisaki. "π-Stacked Polymer Consisting of a Pseudo–meta–[2.2]Paracyclophane Skeleton." Polymers 10, no. 10 (October 12, 2018): 1140. http://dx.doi.org/10.3390/polym10101140.

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A novel π-stacked polymer based on a pseudo–meta–linked [2.2]paracyclophane moieties was synthesized by Sonogashira-Hagihara coupling. The UV-vis absorption spectra of the synthesized polymer and model compounds revealed an extension of the conjugation length owing to the through-space conjugation. The optical properties of the π-stacked dimer with the pseudo–meta–linked [2.2]paracyclophane unit were compared with those of the corresponding dimers with the pseudo–ortho– and pseudo–para–linked [2.2]paracyclophane units.
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Tiwari, Madhu, Sandeep Gupta, and Rajiv Prakash. "One pot synthesis of coordination polymer 2,5-dimercapto-1,3,4-thiadiazole–gold and its application in voltammetric sensing of resorcinol." RSC Adv. 4, no. 49 (2014): 25675–82. http://dx.doi.org/10.1039/c4ra02983f.

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The synthesized coordination polymer DMTD–Au has a layered structure, in which the layers are stacked via π–π stacking and hydrophobic interaction. It facilitates electron transfer kinetics, which has been utilized in the ultra trace sensing of resorcinol.
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Li, Huanhuan, Zhixiang Wang, Chao Song, Yang Wang, Zhaomin Lin, Jianjian Xiao, Runfeng Chen, Chao Zheng, and Wei Huang. "Manipulating charge transport in a π-stacked polymer through silicon incorporation." J. Mater. Chem. C 2, no. 34 (2014): 6946–53. http://dx.doi.org/10.1039/c4tc00486h.

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Uemura, Takashi, Noriyuki Uchida, Atsushi Asano, Akinori Saeki, Shu Seki, Masahiko Tsujimoto, Seiji Isoda, and Susumu Kitagawa. "Highly Photoconducting π-Stacked Polymer Accommodated in Coordination Nanochannels." Journal of the American Chemical Society 134, no. 20 (May 11, 2012): 8360–63. http://dx.doi.org/10.1021/ja301903x.

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Liu, Yue, and Xinping Zhang. "Mobility of Small Molecules in Solid Polymer Film for π-Stacked Crystallization." Crystals 11, no. 9 (August 25, 2021): 1022. http://dx.doi.org/10.3390/cryst11091022.

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Crystallization or π-stacked aggregation of small molecules is an extensively observed phenomenon which favors charge transport along the crystal axis and is important for the design of organic optoelectronic devices. Such a process has been reported for N,N’-Bis(1-ethylpropyl)-3,4,9,10-perylenebis(dicarboximide) (EPPTC). However, the π-stacking mechanism requires solution–air or solution–solid interfaces. The crystallization or aggregation of molecules doped in solid films is generally thought to be impossible, since the solid environment surrounding the small molecules does not allow them to aggregate together into π-stacked crystals. In this work, we demonstrate that the movement of the EPPTC molecules becomes possible in a solid polymer film when it is heated to above the glass transition temperature of the polymer. Thus, crystal particles can be produced as a doped matrix in a thin solid film. The crystallization process is found to be strongly dependent on the annealing temperature and the annealing time. Both the microscopic and spectroscopic evaluations verify such discoveries and characterize the related properties of these crystals.
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Sugino, Hiroyoshi, Yasuhito Koyama, and Tamaki Nakano. "A high triplet-energy polymer: synthesis and photo-physical properties of a π-stacked vinyl polymer having a xanthone moiety in the side chain." RSC Advances 5, no. 27 (2015): 21310–15. http://dx.doi.org/10.1039/c4ra16023a.

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Poly(xanthon-3-yl methacrylate) having a π-stacked conformation efficiently harvests photo excitation energy for sky blue phosphorescent emission of iridium bis[(4,6-difluorophenyl)pyridinato-N,C2]picolinate (FIrpic) in solution and in film.
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Nageh, Hassan, Yue Wang, and Tamaki Nakano. "Cationic polymerization of dibenzofulvene leading to a π-stacked polymer." Polymer 144 (May 2018): 51–56. http://dx.doi.org/10.1016/j.polymer.2018.04.042.

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Hart, Lewis R., Ngoc A. Nguyen, Josephine L. Harries, Michael E. Mackay, Howard M. Colquhoun, and Wayne Hayes. "Perylene as an electron-rich moiety in healable, complementary π–π stacked, supramolecular polymer systems." Polymer 69 (July 2015): 293–300. http://dx.doi.org/10.1016/j.polymer.2015.03.028.

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Watanabe, Kento, Takeshi Sakamoto, Makoto Taguchi, Michiya Fujiki, and Tamaki Nakano. "A chiral π-stacked vinyl polymer emitting white circularly polarized light." Chemical Communications 47, no. 39 (2011): 10996. http://dx.doi.org/10.1039/c1cc13711e.

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Ma, Yunlong, Dongdong Cai, Shuo Wan, Pan Yin, Pengsong Wang, Wenyuan Lin, and Qingdong Zheng. "Control over π-π stacking of heteroheptacene-based nonfullerene acceptors for 16% efficiency polymer solar cells." National Science Review 7, no. 12 (August 25, 2020): 1886–95. http://dx.doi.org/10.1093/nsr/nwaa189.

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Abstract Nonfullerene acceptors are being investigated for use in polymer solar cells (PSCs), with their advantages of extending the absorption range, reducing the energy loss and therefore enhancing the power conversion efficiency (PCE). However, to further boost the PCE, mobilities of these nonfullerene acceptors should be improved. For nonfullerene acceptors, the π–π stacking distance between cofacially stacked molecules significantly affects their mobility. Here, we demonstrate a strategy to increase the mobility of heteroheptacene-based nonfullerene acceptors by reducing their π–π stacking distances via control over the bulkiness of lateral side chains. Incorporation of 2-butyloctyl substituents into the nonfullerene acceptor (M36) leads to an increased mobility with a reduced π–π stacking distance of 3.45 Å. Consequently, M36 affords an enhanced PCE of 16%, which is the highest among all acceptor-donor-acceptor-type nonfullerene acceptors to date. This strategy of control over the bulkiness of side chains on nonfullerene acceptors should aid the development of more efficient PSCs.
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Dissertations / Theses on the topic "Π-stacked polymer"

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Saletti, Mario. "A multidisciplinary approach to the development of innovative tools for pharmaceutical and technological applications." Doctoral thesis, Università di Siena, 2023. https://hdl.handle.net/11365/1227081.

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The research activity carried out during the Ph.D. in Chemical and Pharmaceutical Sciences has regarded the design, synthesis, and characterization of innovative tools relevant to both pharmaceutical and technological fields. Great interest has been dedicated to the investigation of the “affinity polymerization” mechanism of novel polymeric materials founded on repetitive monomeric units based on the 3-phenylbenzofulvene scaffold that spontaneously polymerize by simple removal of the solvent. In this context, the attention has been focused on the synthesis of novel benzofulvene-based derivatives bearing complexed and non-complexed pyridine rings in different positions of the benzofulvene scaffold, to evaluate the effects generated by the insertion of a bulky substituent in the aggregation/polymerization behavior. The experience acquired with this study has been then capitalized on the design, synthesis, and characterization of a novel visible-light-sensitive biomimetic molecular switch inspired by the benzofulvene scaffold and the Green Fluorescent Protein (GFP) chromophore. The chemical-structural manipulation of the benzofulvene structure has made possible the development of a novel set of biomimetic photoswitches inspired by the supramolecular properties of the 3-phenylbenzofulvene scaffold and the molecular features of the GFP chromophore. In the framework of material chemistry, the well-known click-chemistry reaction of hyaluronic acid (HA) derivatives bearing propargylated ferulic groups has been exploited to obtain biomimetic and biocompatible materials useful in different biopharmaceutical fields. In particular, low molecular weight HA has been anchored on the hydrophobic surface of low-generation poly(propylene imine) (PPI) dendrimers by the click-chemistry reaction between their azido-functionalized surfaces and low molecular weight HA derivatives bearing propargylated ferulic groups. The resulting materials have been proposed as biocompatible drug delivery systems (DDSs) of Doxorubicin. Another application of HA has concerned the hyaluronan-based graft copolymers showing low and medium molecular weight values that have been exploited in cross-linking by the click-chemistry reaction. Interestingly, the interaction of resulting HA materials with water led to the formation of hydrogels, and the tunable rheological behavior of these materials led to their applicability in different biomedical fields. Lastly, the knowledge in medicinal chemistry has guided the design and synthesis of innovative bioactive compounds such as novel Cyclooxygenase‑2 (COX-2) inhibitors containing Nitric Oxide (NO) donor moiety (CINODs) endowed with vasorelaxant properties. The outcomes of these studies would provide fertile ground for future projects that will hopefully contribute to accelerate the research in several fields. Indeed, the increased knowledge on the behavior of these innovative tools, by means of a multidisciplinary approach, is the key for boosting the development of novel materials for pharmaceutical and technological applications.
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Jagtap, Subodh Prakash. "Design and synthesis of and π-stacked conjugated oligomers and polymers." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/47574.

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Interchain interactions between π-systems have a strong effect on the properties of conjugated organic materials that find application in devices such as light emitting diodes (OLEDs), organic photovoltaics (OPVs), and field effect transistors (FETs). We have prepared covalently-stacked oligo(1,4-phenylene ethynylene)s and oligo(1,4-phenylene vinylene)s to study the influence of chain-chain interactions on the electronic structure of closely packed conjugated units. These serve as models for segments of conjugated materials in thin film devices. Extension of this concept has allowed us to prepare multi-tiered systems that display the influence of pi-stacking. The stacked architectures were prepared by multi-step synthesis of the scaffolds, followed by metal-catalyzed cross coupling reactions (Sonogashira, Heck, Suzuki couplings) to incorporate the conjugated oligomers. The optical and electrochemical properties of these stacked compounds and polymers were compared to their unstacked linear counterparts. These studies provide a platform for the exploration of the nature of charge carriers and excitons in a broad class of materials that have significant potential in addressing challenges in power generation, lighting and electronics.
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Carson, Bradley Edward. "Synthesis and properties of π-stacked phenylene ethynylene oligomers with a 1,8- substituted naphthalene bridging scaffold." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/41074.

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The field of molecular electronics includes the study of conjugated oligomers and polymers that have significant potential for use in devices such as light emitting diodes (LEDS), field effect transistors (FETS), and photovoltaic solar cells. These materials may replace inorganic semiconductors in these devices, Achieving better device performance through lowering the band-gap and achieving higher field effect mobilities will benefit from a greater fundamental understanding of charge transfer through the aromatic subunits. π-stacking of segments of conjugated polymers has been identified as a key feature that influences the charge transfer through semiconducting organic materials. Optimizing the molecular architecture of conjugated polymers has the potential to provide materials with better charge mobility. While devices might benefit from materials that take advantage of π-stacking, access to π-stacked structures presents a synthetic challenge. 1,8-Disubstituted naphthalenes may serve as simple covalent bridging scaffolds which might hold conjugated oligomers in a π-stacked arrangement. The research described in this thesis focuses on the synthesis of well-defined phenylene ethynylene oligomers coupled to naphthalene to serve as experimental models of closely π-stacked aromatic units in conjugated polymers. The π-stacked molecules reported in this dissertation are characterized by NMR, IR, and mass spectrometry. The effects of π- stacking on the structure and behavior of conjugated oligomers are determined by X-ray crystallography, spectroscopy, and electrochemistry.
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Books on the topic "Π-stacked polymer"

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Nakano, Tamaki, ed. π-Stacked Polymers and Molecules. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54129-5.

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Nakano, Tamaki. π-Stacked Polymers and Molecules: Theory, Synthesis, and Properties. Springer, 2016.

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Book chapters on the topic "Π-stacked polymer"

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Morisaki, Yasuhiro, and Yoshiki Chujo. "Cyclophane-Based π-Stacked Polymers." In π-Stacked Polymers and Molecules, 151–84. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54129-5_3.

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Nakano, Tamaki. "Synthesis and Properties of π-Stacked Vinyl Polymers." In π-Stacked Polymers and Molecules, 1–49. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54129-5_1.

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Cappelli, Andrea, Marco Paolino, Giorgio Grisci, Germano Giuliani, Alessandro Donati, Antonella Caterina Boccia, Filippo Samperi, Raniero Mendichi, and Salvatore Vomero. "Reversible Polymerization Techniques Leading to π-Stacked Polymers." In π-Stacked Polymers and Molecules, 51–149. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54129-5_2.

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Collard, David M. "π-Stacked Oligomers as Models for Semiconducting Conjugated Organic Materials." In π-Stacked Polymers and Molecules, 185–243. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54129-5_4.

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Tsuneda, Takao, and Tetsuya Taketsugu. "π-Stacking on Density Functional Theory: A Review." In π-Stacked Polymers and Molecules, 245–70. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54129-5_5.

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You might also be interested in the extended bibliographies on the topic 'Π-stacked polymer' for particular source types:
Journal articles
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