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Polymers
Special Issues
Thermoresponsive Polymers for Nanocatalysis
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Thermoresponsive Polymers for Nanocatalysis

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

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 6512

Special Issue Editors

Prof. Dr. Rafael Roa

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Guest Editor
Departamento de Física Aplicada I, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
Interests: physical properties of soft-matter systems; stimuli-responsive polymers and functional materials; reaction-diffusion theory; continuum transport theories; electrostatic interactions in soft matter; drug delivery
Dr. Matej Kanduč

E-Mail Website
Guest Editor
Department of Theoretical Physics, J. Stefan Institute, Jamova 39, P.O. Box 3000, 1001 Ljubljana, Slovenia
Interests: polymer physics, polywWetting phenomena and liquid films; biological membranes; hydration and hydrophobic forces; colloid clustering and aggregation; electrostatic interactions in soft matter; polyelectrolytes; charge correlations effects

Special Issue Information

Dear Colleagues,

Thermoresponsive polymers are a class of materials that experience a rapid and reversible change of their physical properties in response to a change in the temperature of the solution. Most of their applications depend on abrupt changes in aqueous solubility at either a lower critical solution temperature (LCST) or an upper critical solution temperature (UCST). One of the most studied thermoresponsive polymer is poly(N-isopropylacrylamide) (PNIPAM) due to its biocompatibility and LCST close to the human body temperature. Among their numerous applications, hydrogels made of thermoresponsive polymers have been recently used as ‘active’ or ‘smart’ carriers for catalytic metal nanoparticles since they not only stabilize the particles in solution but also change their catalytic activity and selectivity through the response of the hydrogel to small temperature changes in the solution environment. For that reason, such hybrid systems are commonly termed as nanoreactors.

The aim of this Special Issue is to highlight the progress and fundamental aspects for the synthesis, characterization and physicochemical properties of thermoresponsive polymers with applications in nanocatalysis.

Prof. Dr. Rafael Roa
Dr. Matej Kanduč
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 submissions that pass pre-check are 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. Polymers is an international peer-reviewed open access semimonthly 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 2700 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

  • thermoresponsive polymers
  • PNIPAM
  • polymer networks
  • hydrogels
  • synthesis
  • characterization
  • permeability
  • diffusion
  • partition coefficient
  • nanoreactors

Published Papers (2 papers)

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Research

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20 pages, 16439 KiB  
Article
Palladium-Catalyzed Mizoroki–Heck and Copper-Free Sonogashira Coupling Reactions in Water Using Thermoresponsive Polymer Micelles
by Noriyuki Suzuki, Shun Koyama, Rina Koike, Nozomu Ebara, Rikito Arai, Yuko Takeoka, Masahiro Rikukawa and Fu-Yu Tsai
Polymers 2021, 13(16), 2717; https://0-doi-org.brum.beds.ac.uk/10.3390/polym13162717 - 13 Aug 2021
Cited by 5 | Viewed by 2608
Abstract
A few kinds of thermoresponsive diblock copolymers have been synthesized and utilized for palladium-catalyzed coupling reactions in water. Poly(N-isopropylacrylamide) (PNIPAAm) and poly(N,N-diethylacrylamide) (PDEAAm) are employed for thermoresponsive segments and poly(sodium 4-styrenesulfonate) (PSSNa) and poly(sodium 2-acrylamido-methylpropanesulfonate) (PAMPSNa) are [...] Read more.
A few kinds of thermoresponsive diblock copolymers have been synthesized and utilized for palladium-catalyzed coupling reactions in water. Poly(N-isopropylacrylamide) (PNIPAAm) and poly(N,N-diethylacrylamide) (PDEAAm) are employed for thermoresponsive segments and poly(sodium 4-styrenesulfonate) (PSSNa) and poly(sodium 2-acrylamido-methylpropanesulfonate) (PAMPSNa) are employed for hydrophilic segments. Palladium-catalyzed Mizoroki–Heck reactions are performed in water and the efficiency of the extraction process is studied. More efficient extraction was observed for the PDEAAm copolymers when compared with the PNIPAAm copolymers and conventional surfactants. In the study of the Sonogashira coupling reactions in water, aggregative precipitation of the products was observed. Washing the precipitate with water gave the product with satisfactory purity with a good yield. Full article
(This article belongs to the Special Issue Thermoresponsive Polymers for Nanocatalysis)
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Review

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19 pages, 4254 KiB  
Review
Thermoresponsive Polypeptoids
by Dandan Liu and Jing Sun
Polymers 2020, 12(12), 2973; https://0-doi-org.brum.beds.ac.uk/10.3390/polym12122973 - 12 Dec 2020
Cited by 15 | Viewed by 3249
Abstract
Stimuli-responsive polymers have been widely studied in many applications such as biomedicine, nanotechnology, and catalysis. Temperature is one of the most commonly used external triggers, which can be highly controlled with excellent reversibility. Thermoresponsive polymers exhibiting a reversible phase transition in a controlled [...] Read more.
Stimuli-responsive polymers have been widely studied in many applications such as biomedicine, nanotechnology, and catalysis. Temperature is one of the most commonly used external triggers, which can be highly controlled with excellent reversibility. Thermoresponsive polymers exhibiting a reversible phase transition in a controlled manner to temperature are a promising class of smart polymers that have been widely studied. The phase transition behavior can be tuned by polymer architectures, chain-end, and various functional groups. Particularly, thermoresponsive polypeptoid is a type of promising material that has drawn growing interest because of its excellent biocompatibility, biodegradability, and bioactivity. This paper summarizes the recent advances of thermoresponsive polypeptoids, including the synthetic methods and functional groups as well as their applications. Full article
(This article belongs to the Special Issue Thermoresponsive Polymers for Nanocatalysis)
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