Poly(acrylamide-homocysteine thiolactone) as a synthetic platform for the preparation of polymeric ionic liquids by post ring-opening-orthogonal modifications

2017 ◽  
Vol 8 (33) ◽  
pp. 4789-4797 ◽  
Author(s):  
Silvia Montolio ◽  
Oleksandr Zagorodko ◽  
Raúl Porcar ◽  
M. Isabel Burguete ◽  
Santiago V. Luis ◽  
...  

Post-modification of Poly(Acrylamide-Homocysteine Thiolactone) provides a variety of advanced polymeric materials with different morphologies and structural diversity.

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Onome Ejeromedoghene ◽  
Olayinka Oderinde ◽  
Sheriff Adewuyi

Abstract Polymeric ionic liquids (PILs) are a class of materials characterized by fascinating physicochemical properties as well as tunable functionality that are quite interesting for the fabrication of materials. They have attracted tremendous attention because they are easy to prepare and can be manipulated into a polymeric matrix via covalent and noncovalent linkage/interactions to form new intelligent/smart polymeric materials with improved properties and multiple functionalities for application in many fields. These new materials are specially designed to change their performance properties when subjected to external environmental stimuli including pH, temperature, light, chemicals and electromagnetic fields. Therefore, this chapter presents the progress in the preparation of PILs via different polymerization reactions and highlights the emerging advances in the fabrication of PILs-based smart polymeric materials.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jiaxi Xu ◽  
Xin Wang ◽  
Nikos Hadjichristidis

AbstractThe synthesis of well-defined block copolymers from a mixture of monomers without additional actions (“one-pot/one-step”) is an ideal and industrially valuable method. In addition, the presence of controlled alternating sequences in one or both blocks increases the structural diversity of polymeric materials, but, at the same time, the synthetic difficulty. Here we show that the “one-pot/one-step” ring-opening terpolymerization of a mixture of three monomers (N-sulfonyl aziridines; cyclic anhydrides and epoxides), with tert-butylimino-tris(dimethylamino)phosphorene (t-BuP1) as a catalyst, results in perfect diblock dialternating terpolymers having a sharp junction between the two blocks, with highly-controllable molecular weights and narrow molecular weight distributions (Ð < 1.08). The organocatalyst switches between two distinct polymerization cycles without any external stimulus, showing high monomer selectivity and kinetic control. The proposed mechanism is based on NMR, in-situ FTIR, SEC, MALDI-ToF, reactivity ratios, and kinetics studies.


Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3110
Author(s):  
David Valverde ◽  
Iván Muñoz ◽  
Eduardo García-Verdugo ◽  
Belen Altava ◽  
Santiago V. Luis

Nanofibers mats derived from the task-specific functionalized polymeric ionic liquids based on homocysteine thiolactone are obtained by electrospinning them as blends with polyvinylpyrrolidone. The presence of this functional moiety allowed the post-functionalization of these mats through the aminolysis of the thiolactone ring in the presence of an amine by a thiol–alkene “click” reaction. Under controlled experimental conditions the modification can be performed introducing different functionalization and crosslinking of the electrospun fibers, while maintaining the nanostructure obtained by the electrospinning. Initial studies suggest that the nanofibers based on these functionalized polymeric ionic liquids can be used in both sensing and catalytic applications.


2015 ◽  
Vol 69 (9) ◽  
Author(s):  
Manoochehr Farzin ◽  
Keyvan Nosratzadegan ◽  
Jamshid Azarnia ◽  
Mohammad Ferdosi

AbstractA novel polymeric ionic liquid (PIL), bearing high C-N and N-N content, potentially suitable for new safe energetic materials and catalyst supports was introduced. The PIL was prepared by way of radical co-polymerisation of 1-vinyl-3-p-nitrobenzylimidazolium bromide and 1-vinylimidazole at 80◦C using azobisisobutyronitrile (AIBN) as an initiator. The PIL thus produced was successfully transformed into NO


2020 ◽  
Author(s):  
Nathaniel Park ◽  
Dmitry Yu. Zubarev ◽  
James L. Hedrick ◽  
Vivien Kiyek ◽  
Christiaan Corbet ◽  
...  

The convergence of artificial intelligence and machine learning with material science holds significant promise to rapidly accelerate development timelines of new high-performance polymeric materials. Within this context, we report an inverse design strategy for polycarbonate and polyester discovery based on a recommendation system that proposes polymerization experiments that are likely to produce materials with targeted properties. Following recommendations of the system driven by the historical ring-opening polymerization results, we carried out experiments targeting specific ranges of monomer conversion and dispersity of the polymers obtained from cyclic lactones and carbonates. The results of the experiments were in close agreement with the recommendation targets with few false negatives or positives obtained for each class.<br>


2019 ◽  
Vol 378 ◽  
pp. 122245 ◽  
Author(s):  
Liya Chen ◽  
Jifang Fu ◽  
Qi Lu ◽  
Liyi Shi ◽  
Mengmeng Li ◽  
...  

2021 ◽  
Author(s):  
Dominic James Wales ◽  
Sara Miralles-Comins ◽  
Isabel Franco Castillo ◽  
Jamie Cameron ◽  
Qun Cao ◽  
...  

3D printable materials based on polymeric ionic liquids (PILs) capable of controlling the synthesis and stabilization of silver nanoparticles (AgNPs) and their synergistic antimicrobial activity are reported. The interaction of...


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