An exotic microstructured globular state formed by a single multiblock copolymer chain

2021 ◽  
Author(s):  
Artem Petrov ◽  
Alexey A. Gavrilov ◽  
Alexander Chertovich
Keyword(s):  
Multiblock Copolymer ◽  
Copolymer Chain

scholarly journals Diagrams of States of Single Flexible-Semiflexible Multi-Block Copolymer Chains: A Flat-Histogram Monte Carlo Study

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 757 ◽  
Author(s):  
Daria Maltseva ◽  
Sergey Zablotskiy ◽  
Julia Martemyanova ◽  
Viktor Ivanov ◽  
Timur Shakirov ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Total Energy ◽  
Single Molecule ◽  
Materials Science ◽  
Monte Carlo Study ◽  
Monte Carlo Algorithm ◽  
Implicit Solvent ◽  
Multiblock Copolymer ◽  
Copolymer Chain ◽  
Selective Solvents

The combination of flexibility and semiflexibility in a single molecule is a powerful design principle both in nature and in materials science. We present results on the conformational behavior of a single multiblock-copolymer chain, consisting of equal amounts of Flexible (F) and Semiflexible (S) blocks with different affinity to an implicit solvent. We consider a manifold of macrostates defined by two terms in the total energy: intermonomer interaction energy and stiffness energy. To obtain diagrams of states (pseudo-phase diagrams), we performed flat-histogram Monte Carlo simulations using the Stochastic Approximation Monte Carlo algorithm (SAMC). We have accumulated two-Dimensional Density of States (2D DoS) functions (defined on the 2D manifold of macrostates) for a SF-multiblock-copolymer chain of length N = 64 with block lengths b = 4, 8, 16, and 32 in two different selective solvents. In an analysis of the canonical ensemble, we calculated the heat capacity and determined its maxima and the most probable morphologies in different regions of the state diagrams. These are rich in various, non-trivial morphologies, which are formed without any specific interactions, and depend on the block length and the type of solvent selectivity (preferring S or F blocks, respectively). We compared the diagrams with those for the non-selective solvent and reveal essential changes in some cases. Additionally, we implemented microcanonical analysis in the “conformational” microcanonical ( N V U , where U is the potential energy) and the true microcanonical ( N V E , where E is the total energy) ensembles with the aim to reveal and classify pseudo-phase transitions, occurring under the change of temperature.

Biodegradable all polyester-based multiblock copolymer elastomers with controlled properties

2021 ◽  
Vol 12 (12) ◽  
pp. 1837-1845
Author(s):  
Hongjuan Li ◽  
Siyuan Xu ◽  
Jing Li ◽  
Yanyan Tu ◽  
Xiaohong Li ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Thermoplastic Elastomers ◽  
Multiblock Copolymer ◽  
Tunable Properties ◽  
Polymerization Method

A cascade polymerization method is developed here for the synthesis of environmentally-friendly biodegradable all polyester-based thermoplastic elastomers with tunable properties.

A water-soluble PPDO/PEG alternating multiblock copolymer: Synthesis, characterization, and its gel–sol transition behavior

2009 ◽  
Vol 45 (4) ◽  
pp. 1190-1197 ◽  
Author(s):  
Xiu-Li Wang ◽  
Yu-Rong Mou ◽  
Si-Chong Chen ◽  
Jing Shi ◽  
Yu-Zhong Wang
Keyword(s):  
Water Soluble ◽  
Multiblock Copolymer ◽  
Transition Behavior

Chemically Durable Poly(phenylene-co-arylene ether) Multiblock Copolymer-Based Anion Exchange Membranes with Different Hydrophobic Moieties for Application in Fuel Cells

2020 ◽  
Vol 53 (23) ◽  
pp. 10538-10547
Author(s):  
Adam F. Nugraha ◽  
Songmi Kim ◽  
Sung-Hee Shin ◽  
Hyejin Lee ◽  
Dongwon Shin ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Multiblock Copolymer ◽  
Arylene Ether

In situ synthesis, morphology and magnetic properties of poly(ether–ester) multiblock copolymer/carbon-covered nickel nanosystems

2010 ◽  
Vol 356 (37-40) ◽  
pp. 1893-1901 ◽  
Author(s):  
N. Guskos ◽  
J. Typek ◽  
B.V. Padlyak ◽  
Yu K. Gorelenko ◽  
I. Pelech ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
In Situ Synthesis ◽  
Multiblock Copolymer ◽  
Ether Ester
Sign in / Sign up

Export Citation Format

Share Document