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Special Issue "Lewis Pair Polymerization for New Reactivity and Structure in Polymer Synthesis"

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Organometallic Chemistry".

Deadline for manuscript submissions: 15 January 2018

Special Issue Editors

Guest Editor
Prof. Dr. Miao Hong

State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
Website | E-Mail
Interests: organometallic and organic catalysis for efficient and controlled polymerization; sustainable polymers, helical chiral polymers and functional polyolefins
Guest Editor
Dr. Jiawei Chen

Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
E-Mail
Interests: Lewis acid-mediated catalysis; frustrated Lewis pair chemistry; metal hydride chemistry; hydrosilylation; Lewis pair polymerization
Guest Editor
Prof. Dr. Eugene Y.-X. Chen

Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA
Website | E-Mail
Interests: recyclable & renewable polymers; metal-mediated precision (stereoselective, chemoselective, and living) polymer synthesis; Lewis pair polymerization; organopolymerization; biomass conversion

Special Issue Information

Dear Colleagues,

The last decade has witnessed tremendous progress in the emerging frustrated Lewis pair (FLP) chemistry, since the seminal discovery of heterolytic cleavage of dihydrogen by sterically encumbered Lewis acid/base pairs. Thanks to the vigorous and sustained research carried out in this area, FLP chemistry has proved to be a powerful and versatile transition-metal-free strategy for small molecule activations and related catalytic transformations. Subsequent efforts have been devoted to the understanding of fundamental aspects of FLP chemistry and exploiting the reactivity and cooperativity of Lewis pairs to new areas such as polymer synthesis. In this context, the concept of Lewis pair polymerization (LPP)—which utilizes an FLP, a classical Lewis adduct (CLA), or an interacting Lewis pair at the intermediacy between FLP and CLA states—to achieve cooperative monomer activation and chain initiation and/or propagation has been developed to synthesize various types of polymers. The seemingly unlimited tunability of the steric effects and electronic properties of Lewis acids and bases, and therefore the interactions between the resulting Lewis pairs, allows the development of a variety of initiator or catalyst systems that are capable of promoting different types of polymerizations, such as addition polymerization of polar and non-polar vinyl monomers, and ring opening (co)polymerization of heterocyclic monomers. Living and chemoselective LPP processes have also been recently uncovered.

The goal of this special issue is to collect and disseminate some of the significant contributions in the area of polymer synthesis recently enabled by LPP, emphasizing the development of new polymerization reactions rendered by new Lewis pair catalyst/initiator systems, exploration of monomer scopes, and synthesis of polymers with controlled or unique structures. Hence, we cordially invite you to submit your valuable contributions to this special issue on the LPP topic that interfaces with main-group, organometallic, and polymer chemistry, as well as catalytic and green chemistry.

Prof. Dr. Miao Hong
Dr. Jiawei Chen
Prof. Dr. Eugene Y.-X. Chen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Lewis pair polymerization
  • frustrated Lewis pair
  • interacting Lewis pair
  • classical Lewis adduct
  • polymerization catalysis
  • polymer synthesis
  • green chemistry

Published Papers (1 paper)

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Research

Open AccessFeature PaperArticle Brush Polymer of Donor-Accepter Dyads via Adduct Formation between Lewis Base Polymer Donor and All Carbon Lewis Acid Acceptor
Molecules 2017, 22(9), 1564; doi:10.3390/molecules22091564
Received: 10 August 2017 / Accepted: 10 September 2017 / Published: 18 September 2017
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Abstract
A synthetic method that taps into the facile Lewis base (LB)→Lewis acid (LA) adduct forming reaction between the semiconducting polymeric LB and all carbon LA C60 for the construction of covalently linked donor-acceptor dyads and brush polymer of dyads is reported. The
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A synthetic method that taps into the facile Lewis base (LB)→Lewis acid (LA) adduct forming reaction between the semiconducting polymeric LB and all carbon LA C60 for the construction of covalently linked donor-acceptor dyads and brush polymer of dyads is reported. The polymeric LB is built on poly(3-hexylthiophene) (P3HT) macromers containing either an alkyl or vinyl imidazolium end group that can be readily converted into the N-heterocyclic carbene (NHC) LB site, while the brush polymer architecture is conveniently constructed via radical polymerization of the macromer P3HT with the vinyl imidazolium chain end. Simply mixing of such donor polymeric LB with C60 rapidly creates linked P3HT-C60 dyads and brush polymer of dyads in which C60 is covalently linked to the NHC junction connecting the vinyl polymer main chain and the brush P3HT side chains. Thermal behaviors, electronic absorption and emission properties of the resulting P3HT-C60 dyads and brush polymer of dyads have been investigated. The results show that a change of the topology of the P3HT-C60 dyad from linear to brush architecture enhances the crystallinity and Tm of the P3HT domain and, along with other findings, they indicate that the brush polymer architecture of donor-acceptor domains provides a promising approach to improve performances of polymer-based solar cells. Full article
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