scholarly journals Triblock Copolymers Based on Sucrose Methacrylate and Methyl Methacrylate: RAFT Polymerization and Self‐Assembly

2020 ◽  
Vol 221 (10) ◽  
pp. 2070025
Author(s):  
Raphael Henrique Marques Marcilli ◽  
Cesar Liberato Petzhold ◽  
Maria Isabel Felisberti
Keyword(s):  
Methyl Methacrylate ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Raft Polymerization

Triblock Copolymers Based on Sucrose Methacrylate and Methyl Methacrylate: RAFT Polymerization and Self‐Assembly

2020 ◽  
Vol 221 (10) ◽  
pp. 1900561
Author(s):  
Raphael Henrique Marques Marcilli ◽  
Cesar Liberato Petzhold ◽  
Maria Isabel Felisberti
Keyword(s):  
Methyl Methacrylate ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Raft Polymerization

Thermo- and pH-induced self-assembly of P(AA-b -NIPAAm-b -AA) triblock copolymers synthesized via RAFT polymerization

2015 ◽  
Vol 54 (8) ◽  
pp. 1109-1118 ◽  
Author(s):  
Chih-Yu Kuo ◽  
Trong-Ming Don ◽  
Shih-Chi Hsu ◽  
Chia-Fen Lee ◽  
Wen-Yen Chiu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Raft Polymerization

Synthesis, self-assembly and self-healing properties of organic–inorganic ABA triblock copolymers with poly(POSS acrylate) endblocks

2019 ◽  
Vol 10 (19) ◽  
pp. 2424-2435 ◽  
Author(s):  
Bingjie Zhao ◽  
Sen Xu ◽  
Sixun Zheng
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
Chain Transfer ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Self Healing ◽  
Reversible Addition ◽  
Aba Triblock Copolymer

A novel organic–inorganic ABA triblock copolymer with a poly(acrylate amide) (PAA) midblock and poly(POSS acrylate) [P(POSS)] endblocks was synthesized via sequential reversible addition–fragmentation chain transfer (RAFT) polymerization.

scholarly journals Nucleobase-functionalized ABC triblock copolymers: self-assembly of supramolecular architectures

2014 ◽  
Vol 50 (65) ◽  
pp. 9145-9148 ◽  
Author(s):  
Keren Zhang ◽  
Gregory B. Fahs ◽  
Motohiro Aiba ◽  
Robert B. Moore ◽  
Timothy E. Long
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Abc Triblock Copolymers ◽  
Central Block ◽  
Supramolecular Architectures

RAFT polymerization afforded acrylic ABC triblock copolymers with self-complementary nucleobase-functionalized external blocks and a low-Tg soft central block.

scholarly journals “One-pot” aminolysis/thia-Michael addition preparation of well-defined amphiphilic PVDF-b-PEG-b-PVDF triblock copolymers: self-assembly behaviour in mixed solvents

2020 ◽  
Vol 11 (2) ◽  
pp. 401-410 ◽  
Author(s):  
Enrique Folgado ◽  
Marc Guerre ◽  
Antonio Da Costa ◽  
Anthony Ferri ◽  
Ahmed Addad ◽  
...  
Keyword(s):  
Michael Addition ◽  
Self Assembly ◽  
Triblock Copolymer ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Mixed Solvents ◽  
One Pot ◽  
Crystalline Structures

Novel amphiphilic PVDF-based triblock copolymer (PVDF50-b-PEG136-b-PVDF50) is synthesized using RAFT polymerization and a one-pot thia-Michael addition. Self-assembly of this ABA copolymer resulted in formation of original crystalline structures.

Poly(methyl methacrylate-block-vinyl-m-triphenylamine): synthesis by RAFT polymerization and melt-state self-assembly

Soft Matter ◽  
2013 ◽  
Vol 9 (42) ◽  
pp. 10146 ◽  
Author(s):  
Sarah E. Mastroianni ◽  
Joseph P. Patterson ◽  
Rachel K. O'Reilly ◽  
Thomas H. Epps, III
Keyword(s):  
Methyl Methacrylate ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Poly Methyl Methacrylate

Self-Assembly of Hydrogels From Elastin-Mimetic Block Copolymers

2002 ◽  
Vol 724 ◽  
Author(s):  
Elizabeth R. Wright ◽  
R. Andrew McMillan ◽  
Alan Cooper ◽  
Robert P. Apkarian ◽  
Vincent P. Conticello
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Variable Temperature ◽  
Inverse Temperature ◽  
Temperature Transition ◽  
Scanning Calorimetry ◽  
Design Synthesis ◽  
Inverse Temperature Transition ◽  
Functional Biomaterials

AbstractTriblock copolymers have traditionally been synthesized with conventional organic components. However, triblock copolymers could be synthesized by the incorporation of two incompatible protein-based polymers. The polypeptides would differ in their hydrophobicity and confer unique physiochemical properties to the resultant materials. One protein-based polymer, based on a sequence of native elastin, that has been utilized in the synthesis of biomaterials is poly (Valine-Proline-Glycine-ValineGlycine) or poly(VPGVG) [1]. This polypeptide has been shown to have an inverse temperature transition that can be adjusted by non-conservative amino acid substitutions in the fourth position [2]. By combining polypeptide blocks with different inverse temperature transition values due to hydrophobicity differences, we expect to produce amphiphilic polypeptides capable of self-assembly into hydrogels. Our research examines the design, synthesis and characterization of elastin-mimetic block copolymers as functional biomaterials. The methods that are used for the characterization include variable temperature 1D and 2D High-Resolution-NMR, cryo-High Resolutions Scanning Electron Microscopy and Differential Scanning Calorimetry.

scholarly journals Quadruple Hydrogen Bond-Containing A-AB-A Triblock Copolymers: Probing the Influence of Hydrogen Bonding in the Central Block

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4705
Author(s):  
Boer Liu ◽  
Xi Chen ◽  
Glenn A. Spiering ◽  
Robert B. Moore ◽  
Timothy E. Long
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Microphase Separation ◽  
Triblock Copolymers ◽  
Random Copolymer ◽  
Thermomechanical Properties ◽  
Structure Property ◽  
Scanning Calorimetry ◽  
Central Block ◽  
Quadruple Hydrogen Bonding

This work reveals the influence of pendant hydrogen bonding strength and distribution on self-assembly and the resulting thermomechanical properties of A-AB-A triblock copolymers. Reversible addition-fragmentation chain transfer polymerization afforded a library of A-AB-A acrylic triblock copolymers, wherein the A unit contained cytosine acrylate (CyA) or post-functionalized ureido cytosine acrylate (UCyA) and the B unit consisted of n-butyl acrylate (nBA). Differential scanning calorimetry revealed two glass transition temperatures, suggesting microphase-separation in the A-AB-A triblock copolymers. Thermomechanical and morphological analysis revealed the effects of hydrogen bonding distribution and strength on the self-assembly and microphase-separated morphology. Dynamic mechanical analysis showed multiple tan delta (δ) transitions that correlated to chain relaxation and hydrogen bonding dissociation, further confirming the microphase-separated structure. In addition, UCyA triblock copolymers possessed an extended modulus plateau versus temperature compared to the CyA analogs due to the stronger association of quadruple hydrogen bonding. CyA triblock copolymers exhibited a cylindrical microphase-separated morphology according to small-angle X-ray scattering. In contrast, UCyA triblock copolymers lacked long-range ordering due to hydrogen bonding induced phase mixing. The incorporation of UCyA into the soft central block resulted in improved tensile strength, extensibility, and toughness compared to the AB random copolymer and A-B-A triblock copolymer comparisons. This study provides insight into the structure-property relationships of A-AB-A supramolecular triblock copolymers that result from tunable association strengths.

Sign in / Sign up

Export Citation Format

Share Document