Self-assembly of amphiphilic di and triblock copolymers of styrene and quaternized 5-(N,N-diethylamino) isoprene in selective solvents

Polymer ◽  
2003 ◽  
Vol 44 (7) ◽  
pp. 2117-2128 ◽  
Author(s):  
Izabel C Riegel ◽  
Dimitrios Samios ◽  
Cesar L Petzhold ◽  
Adi Eisenberg
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Selective Solvents

Complex Micelles from Self-Assembly of ABA Triblock Copolymers in B-Selective Solvents

Langmuir ◽  
2010 ◽  
Vol 26 (6) ◽  
pp. 4226-4232 ◽  
Author(s):  
Weixin Kong ◽  
Baohui Li ◽  
Qinghua Jin ◽  
Datong Ding ◽  
An-Chang Shi
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Selective Solvents ◽  
Complex Micelles

Synthesis and self-assembly behavior of polyhedral oligomeric silsesquioxane-based triblock copolymers in selective solvents by dissipative particle dynamics simulation

2018 ◽  
Vol 20 (6) ◽  
pp. 4074-4082 ◽  
Author(s):  
Yun Jin ◽  
Danyi Guo ◽  
Bo Li ◽  
Shouping Xu ◽  
Jiang Cheng ◽  
...  
Keyword(s):  
Experimental Data ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
Dynamics Simulation ◽  
Selective Solvents ◽  
Assembly Behavior ◽  
Oligomeric Silsesquioxane ◽  
Dissipative Particle Dynamics Simulation

Self-assembly behaviors of POSS-based triblock copolymers were studied by DPD, and the results were in qualitative agreement with the experimental data.

scholarly journals SIMULATED ANNEALING STUDY OF THE SELF-ASSEMBLY OF END-ANCHORED ASYMMETRIC ABA TRIBLOCK COPOLYMERS IN SELECTIVE SOLVENTS

2013 ◽  
Vol 013 (10) ◽  
pp. 1277-1284
Author(s):  
Xu Ji-hua ◽  
Jiang Run ◽  
Yin Yu-hua ◽  
Wang Zheng ◽  
Li Bao-hui
Keyword(s):  
Simulated Annealing ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
The Self ◽  
Selective Solvents ◽  
Annealing Study

Complex micelles from the self-assembly of amphiphilic triblock copolymers in selective solvents

2010 ◽  
Vol 132 (20) ◽  
pp. 204905 ◽  
Author(s):  
Pengtao He ◽  
Xuejin Li ◽  
Dazhi Kou ◽  
Mingge Deng ◽  
Haojun Liang
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
The Self ◽  
Selective Solvents ◽  
Complex Micelles

Vesicles from the self-assembly of coil–rod–coil triblock copolymers in selective solvents

Polymer ◽  
2014 ◽  
Vol 55 (12) ◽  
pp. 2921-2927 ◽  
Author(s):  
Zenglei Chen ◽  
Xianghong Wang ◽  
Linxi Zhang ◽  
Linli He
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
The Self ◽  
Selective Solvents

Complex micelles from the self-assembly of coil-rod-coil amphiphilic triblock copolymers in selective solvents

Soft Matter ◽  
2010 ◽  
Vol 6 (7) ◽  
pp. 1539 ◽  
Author(s):  
Pengtao He ◽  
Xuejin Li ◽  
Mingge Deng ◽  
Tao Chen ◽  
Haojun Liang
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
The Self ◽  
Selective Solvents ◽  
Complex Micelles

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.

Synthesis and self-assembly behaviour of poly(Nα-Boc-l-tryptophan)-block-poly(ethylene glycol)-block-poly(Nα-Boc-l-tryptophan)

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24142-24153
Author(s):  
Andreea S. Voda ◽  
Kevin Magniez ◽  
Nisa V. Salim ◽  
Cynthia Wong ◽  
Qipeng Guo
Keyword(s):  
Drug Delivery ◽  
Ethylene Glycol ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Potential Drug ◽  
Poly Ethylene Glycol ◽  
Drug Delivery Applications ◽  
Poly Ethylene ◽  
First Time

We report for the first time the use of Nα-Boc-l-tryptophan for the synthesis of amphiphilic BAB triblock copolymers for potential drug delivery applications.

Orientation- and cosolvent-induced self-assembly of amphiphilic homopolymers in selective solvents

Polymer ◽  
2021 ◽  
Vol 232 ◽  
pp. 124160
Author(s):  
Aleksandr I. Buglakov ◽  
Daniil E. Larin ◽  
Valentina V. Vasilevskaya
Keyword(s):  
Self Assembly ◽  
Selective Solvents ◽  
Amphiphilic Homopolymers
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