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Polymers
Special Issues
Hyper-Cross-Linked Polymers (HCPs)
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Hyper-Cross-Linked Polymers (HCPs)

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Chemistry".

Deadline for manuscript submissions: closed (31 March 2019)

Special Issue Editor

Dr. John D. Atkinson

E-Mail Website
Guest Editor
Department of Civil, Structural, and Envitonmental Engineering, University at Buffalo, Buffalo, NY 14260, USA
Interests: adsorption; porous polymers; activated carbon; environmental catalysis; materials engineering; sustainability

Special Issue Information

Dear Colleagues,

Environmental applications requiring porous materials, particularly large-scale adsorption and catalysis efforts, have long been dominated by activated carbon and zeolites. This may be gradually changing as polymer synthesis options expand and associated material costs decrease. While polymers of intrinsic microporosity, covalent organic frameworks, conjugated microporous polymers, and other novel polymers are increasingly reported in the literature, polymers prepared through traditional and novel hyper-cross-linking efforts appear most poised to compete with established porous materials. The objective of this Special Issue is to highlight recent efforts in the synthesis and application of hyper-cross-linked polymers. In particular, submissions focused on sustainable hyper-cross-linking efforts or exploiting unique polymer properties (e.g., surface chemistry, structured porosity) to improve performance in large-scale adsorption and catalysis applications are encouraged.

Dr. John D. Atkinson
Guest Editor

Keywords

  • Polymer
  • Hyper-Cross-Linking
  • Porous
  • Microporous
  • Adsorption
  • Catalysis
  • Carbon Dioxide
  • Volatile Organic Compounds
  • Synthesis
  • Sustainable

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Published Papers (2 papers)

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18 pages, 2615 KiB  
Article
On the Gas Storage Properties of 3D Porous Carbons Derived from Hyper-Crosslinked Polymers
by Giorgio Gatti, Mina Errahali, Lorenzo Tei, Maurizio Cossi and Leonardo Marchese
Polymers 2019, 11(4), 588; https://doi.org/10.3390/polym11040588 - 1 Apr 2019
Cited by 18 | Viewed by 3491
Abstract
The preparation of porous carbons by post-synthesis treatment of hypercrosslinked polymers is described, with a careful physico-chemical characterization, to obtain new materials for gas storage and separation. Different procedures, based on chemical and thermal activations, are considered; they include thermal treatment at 380 [...] Read more.
The preparation of porous carbons by post-synthesis treatment of hypercrosslinked polymers is described, with a careful physico-chemical characterization, to obtain new materials for gas storage and separation. Different procedures, based on chemical and thermal activations, are considered; they include thermal treatment at 380 °C, and chemical activation with KOH followed by thermal treatment at 750 or 800 °C; the resulting materials are carefully characterized in their structural and textural properties. The thermal treatment at temperature below decomposition (380 °C) maintains the polymer structure, removing the side-products of the polymerization entrapped in the pores and improving the textural properties. On the other hand, the carbonization leads to a different material, enhancing both surface area and total pore volume—the textural properties of the final porous carbons are affected by the activation procedure and by the starting polymer. Different chemical activation methods and temperatures lead to different carbons with BET surface area ranging between 2318 and 2975 m2/g and pore volume up to 1.30 cc/g. The wise choice of the carbonization treatment allows the final textural properties to be finely tuned by increasing either the narrow pore fraction or the micro- and mesoporous volume. High pressure gas adsorption measurements of methane, hydrogen, and carbon dioxide of the most promising material are investigated, and the storage capacity for methane is measured and discussed. Full article
(This article belongs to the Special Issue Hyper-Cross-Linked Polymers (HCPs))
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13 pages, 3173 KiB  
Article
Cobalt-Doped Porous Carbon Nanosheets Derived from 2D Hypercrosslinked Polymer with CoN4 for High Performance Electrochemical Capacitors
by Yuanhai Chen, Fengru Liu, Feng Qiu, Chenbao Lu, Jialing Kang, Doudou Zhao, Sheng Han and Xiaodong Zhuang
Polymers 2018, 10(12), 1339; https://doi.org/10.3390/polym10121339 - 4 Dec 2018
Cited by 18 | Viewed by 3652
Abstract
Cobalt-doped graphene-coupled hypercrosslinked polymers (Co-GHCP) have been successfully prepared on a large scale, using an efficient RAFT (Reversible Addition-Fragmentation Chain Transfer Polymerization) emulsion polymerization and nucleophilic substitution reaction with Co (II) porphyrin. The Co-GHCP could be transformed into cobalt-doped porous carbon nanosheets (Co-GPC) [...] Read more.
Cobalt-doped graphene-coupled hypercrosslinked polymers (Co-GHCP) have been successfully prepared on a large scale, using an efficient RAFT (Reversible Addition-Fragmentation Chain Transfer Polymerization) emulsion polymerization and nucleophilic substitution reaction with Co (II) porphyrin. The Co-GHCP could be transformed into cobalt-doped porous carbon nanosheets (Co-GPC) through direct pyrolysis treatment. Such a Co-GPC possesses a typical 2D morphology with a high specific surface area of 257.8 m2 g−1. These intriguing properties of transition metal-doping, high conductivity, and porous structure endow the Co-GPC with great potential applications in energy storage and conversion. Utilized as an electrode material in a supercapacitor, the Co-GPC exhibited a high electrochemical capacitance of 455 F g−1 at a specific current of 0.5 A g−1. After 2000 charge/discharge cycles, at a current density of 1 A g−1, the specific capacitance increased by almost 6.45%, indicating the excellent capacitance and durability of Co-GPC. These results demonstrated that incorporation of metal porphyrin into the framework of a hypercrosslinked polymer is a facile strategy to prepare transition metal-doped porous carbon for energy storage applications. Full article
(This article belongs to the Special Issue Hyper-Cross-Linked Polymers (HCPs))
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