scholarly journals Latest Advances on the Synthesis of Linear ABC-Type Triblock Terpolymers and Star-Shaped Polymers by RAFT Polymerization

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1698
Author(s):  
Athanasios Skandalis ◽  
Theodore Sentoukas ◽  
Despoina Giaouzi ◽  
Martha Kafetzi ◽  
Stergios Pispas
Keyword(s):  
Self Assembly ◽  
Raft Polymerization ◽  
Degree Of Polymerization ◽  
Stimuli Responsive ◽  
Reaction Conditions ◽  
Functional Monomers ◽  
Precise Control ◽  
Versatile Technique ◽  
External Stimuli ◽  
Triblock Terpolymers

This review article aims to cover the most recent advances regarding the synthesis of linear ABC-type triblock terpolymers and star-shaped polymers by RAFT polymerization, as well as their self-assembly properties in aqueous solutions. RAFT polymerization has received extensive attention, as it is a versatile technique, compatible with a great variety of functional monomers and reaction conditions, while providing exceptional and precise control over the final structure, with well-defined side-groups and post-polymerization engineering potential. Linear triblock terpolymers synthesis can lead to very interesting novel ideas, since there are countless combinations of stimuli/non-stimuli and hydrophilic/hydrophobic monomers that someone can use. One of their most interesting features is their ubiquitous ability to self-assemble in different nanostructures depending on their degree of polymerization (DP), block composition, solubilization protocol, internal and external stimuli. On the other hand, star-shaped polymers exhibit a more stable nanostructure, with a distinct crosslinked core and arm blocks that can also incorporate stimuli-responsive blocks for “smart” applications.

Stimuli-responsive anisotropic actuation of melem-formaldehyde polymer

2020 ◽  
Vol 7 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Yang Wang ◽  
Niannian Wu ◽  
Congyan Liu ◽  
Mohamed K. Albolkany ◽  
Min Wang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Assembly Process ◽  
Stimuli Responsive ◽  
External Stimuli

The intrinsically anisotropic melem-formaldehyde polymer that is constructed from a self-assembly process enables reversible anisotropic actuation under external stimuli.

RAFT polymerization to form stimuli-responsive polymers

2017 ◽  
Vol 8 (1) ◽  
pp. 177-219 ◽  
Author(s):  
Graeme Moad
Keyword(s):  
Raft Polymerization ◽  
Stimuli Responsive ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Biological Signals ◽  
External Stimuli

Stimuli-responsive polymers respond to a variety of external stimuli, which include optical, electrical, thermal, mechanical, redox, pH, chemical, environmental and biological signals. This paper is concerned with the process of forming such polymers by RAFT polymerization.

scholarly journals Controlled nanogel and macrogel structures from self-assembly of a stimuli-responsive amphiphilic block copolymer

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64791-64798 ◽  
Author(s):  
JianCheng Liu ◽  
Christina Uhlir ◽  
Parag K. Shah ◽  
Fang Sun ◽  
Jeffrey W. Stansbury
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Amphiphilic Block Copolymer ◽  
Stimuli Responsive

RAFT polymerization was utilized to prepare an amphiphilic block copolymer containing both hydrophilic and hydrophobic segments.

scholarly journals Recent Advances on Stimuli-Responsive Hydrogels Based on Tissue-Derived ECMs and Their Components: Towards Improving Functionality for Tissue Engineering and Controlled Drug Delivery

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3263
Author(s):  
Julian A. Serna ◽  
Laura Rueda-Gensini ◽  
Daniela N. Céspedes-Valenzuela ◽  
Javier Cifuentes ◽  
Juan C. Cruz ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Regenerative Medicine ◽  
Disease Modeling ◽  
Mechanical Stability ◽  
Biological Properties ◽  
Stimuli Responsive ◽  
Precise Control ◽  
External Stimuli

Due to their highly hydrophilic nature and compositional versatility, hydrogels have assumed a protagonic role in the development of physiologically relevant tissues for several biomedical applications, such as in vivo tissue replacement or regeneration and in vitro disease modeling. By forming interconnected polymeric networks, hydrogels can be loaded with therapeutic agents, small molecules, or cells to deliver them locally to specific tissues or act as scaffolds for hosting cellular development. Hydrogels derived from decellularized extracellular matrices (dECMs), in particular, have gained significant attention in the fields of tissue engineering and regenerative medicine due to their inherently high biomimetic capabilities and endowment of a wide variety of bioactive cues capable of directing cellular behavior. However, these hydrogels often exhibit poor mechanical stability, and their biological properties alone are not enough to direct the development of tissue constructs with functional phenotypes. This review highlights the different ways in which external stimuli (e.g., light, thermal, mechanical, electric, magnetic, and acoustic) have been employed to improve the performance of dECM-based hydrogels for tissue engineering and regenerative medicine applications. Specifically, we outline how these stimuli have been implemented to improve their mechanical stability, tune their microarchitectural characteristics, facilitate tissue morphogenesis and enable precise control of drug release profiles. The strategic coupling of the bioactive features of dECM-based hydrogels with these stimulation schemes grants considerable advances in the development of functional hydrogels for a wide variety of applications within these fields.

PDMAEMA-b-PLMA-b-POEGMA triblock terpolymers via RAFT polymerization and their self-assembly in aqueous solutions

2017 ◽  
Vol 8 (31) ◽  
pp. 4538-4547 ◽  
Author(s):  
Athanasios Skandalis ◽  
Stergios Pispas
Keyword(s):  
Aqueous Solutions ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Aqueous Media ◽  
Spherical Micelles ◽  
Triblock Terpolymers

Novel PDMAEMA-b-PLMA-b-POEGMA triblock terpolymers were synthesized by RAFT polymerization. Triblock polyelectrolytes were obtained by quaternization. PDMAEMA-b-PLMA-b-POEGMA and QPDMAEMA-b-PLMA-b-POEGMA terpolymers self-assemble into spherical micelles with a mixed corona in aqueous media.

Responsive filtration membranes by polymer self-assembly

TECHNOLOGY ◽  
2016 ◽  
Vol 04 (04) ◽  
pp. 217-228 ◽  
Author(s):  
Papatya Kaner ◽  
Prity Bengani-Lutz ◽  
Ilin Sadeghi ◽  
Ayse Asatekin
Keyword(s):  
Self Assembly ◽  
Performance Parameters ◽  
Stimuli Responsive ◽  
Membrane Filters ◽  
Filtration Membranes ◽  
Chemical Manufacturing ◽  
Responsive Membranes ◽  
Responsive Behavior ◽  
Scalable Methods ◽  
External Stimuli

Membrane technologies are essential for water treatment, bioprocessing and chemical manufacturing. Stimuli-responsive membranes respond to changes in feed conditions (e.g., temperature, pH) or external stimuli (e.g., magnetic field, light) with a change in performance parameters (permeability, selectivity). This enables new functionalities such as tunable performance, self-cleaning and smart-valve behavior. Polymer self-assembly is a crucial tool for manufacturing such membranes using scalable methods, enabling easier commercialization. This review surveys approaches to impart stimuli responsive behavior to membrane filters using polymer self-assembly.

Synthesis, thermoresponsivity and multi-tunable hierarchical self-assembly of multi-responsive (AB)mC miktobrush-coil terpolymers

2020 ◽  
Vol 11 (17) ◽  
pp. 3003-3017 ◽  
Author(s):  
Xiaomin Zhu ◽  
Jian Zhang ◽  
Cheng Miao ◽  
Siyu Li ◽  
Youliang Zhao
Keyword(s):  
Physical Properties ◽  
Self Assembly ◽  
Stimuli Responsive ◽  
External Stimuli

Stimuli-responsive miktobrush-coil terpolymers can exhibit unique physical properties and hierarchical self-assembly behaviors dependent on composition, concentration and external stimuli.

scholarly journals Synthesis and self-assembly of a carborane-containing ABC triblock terpolymer: morphology control on a dual-stimuli responsive system

2019 ◽  
Vol 10 (22) ◽  
pp. 2774-2780 ◽  
Author(s):  
Roberto Fernandez-Alvarez ◽  
Eva Hlavatovičová ◽  
Krzysztof Rodzeń ◽  
Adam Strachota ◽  
Sami Kereïche ◽  
...  
Keyword(s):  
Self Assembly ◽  
Morphology Control ◽  
Stimuli Responsive ◽  
System P ◽  
Controlled Morphology ◽  
Triblock Terpolymers

Amphiphilic triblock terpolymers have attractive applications in the preparation of nanoparticles with controlled morphology.

scholarly journals Self-assembly of Janus Au:Fe3O4 branched nanoparticles. From organized clusters to stimuli-responsive nanogel suprastructures

2020 ◽  
Vol 2 (6) ◽  
pp. 2525-2530
Author(s):  
Javier Reguera ◽  
Tatjana Flora ◽  
Naomi Winckelmans ◽  
José C. Rodríguez-Cabello ◽  
Sara Bals
Keyword(s):  
Self Assembly ◽  
Stimuli Responsive ◽  
Small Clusters ◽  
External Stimuli

Novel suprastructures, from small clusters to micelle-like structures, are obtained by self-assembly of Janus Au:Fe3O4 nanostars under external stimuli.

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