chain rigidity
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The effect of chain rigidity and microporosity on the sub-ambient temperature gas separation properties of intrinsic microporous polyimides

2021 ◽  
pp. 119439
Author(s):  
Wenhui Ji ◽  
Kaihua Li ◽  
Wenxiong Shi ◽  
Lifeng Bai ◽  
Jianxin Li ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Gas Separation ◽  
Chain Rigidity

scholarly journals Strong Reduction of the Chain Rigidity of Hyaluronan by Selective Binding of Ca2+ Ions

2021 ◽  
Vol 54 (3) ◽  
pp. 1137-1146
Author(s):  
Giulia Giubertoni ◽  
Alberto Pérez de Alba Ortíz ◽  
Fouzia Bano ◽  
Xing Zhang ◽  
Robert J. Linhardt ◽  
...  
Keyword(s):  
Strong Reduction ◽  
Selective Binding ◽  
Chain Rigidity

The stress deformation response influenced by the chain rigidity for mesostructures in diblock copolymers

2021 ◽  
Author(s):  
Gaohang Chen ◽  
Hui Zhang ◽  
Teng Lu ◽  
Ying Jiang
Keyword(s):  
Diblock Copolymers ◽  
Chain Model ◽  
Deformation Response ◽  
Chain Rigidity ◽  
Consistent Field ◽  
Stress Strain Relation ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Self Consistent Field Theory ◽  
Wormlike Chain Model

A self-consistent field theory formalism based on the wormlike chain model is developed to investigate the stress–strain relation for mesostructures in diblock copolymers under the influence of chain rigidity.

scholarly journals The Structure of Dipolar Polymer Brushes and Their Interaction in the Melt. Impact of Chain Stiffness

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2887
Author(s):  
Ivan V. Mikhailov ◽  
Victor M. Amoskov ◽  
Anatoly A. Darinskii ◽  
Tatiana M. Birshtein
Keyword(s):  
Polymer Brushes ◽  
Dipole Moments ◽  
Segment Length ◽  
Chain Rigidity ◽  
Chain Stiffness ◽  
Dipole Interactions ◽  
Consistent Field ◽  
Self Consistent Field ◽  
Two Populations ◽  
Kuhn Segment Length

By using the numerical lattice Scheutjens–Fleer self-consistent field (SF-SCF) method we have studied the effect of the restricted flexibility of grafted chains on the structure and mutual interaction of two opposing planar conventional and A-type dipolar brushes. Brushes are immersed in the solvent consisting of chains similar to the grafted ones. The increase of the chain rigidity enhances the segregation of grafted chains in a A-type dipolar brush into two populations: backfolded chains with terminal monomers near the grafting surface and chains with the ends at the brush periphery. The fraction of backfolded chains grows by an increase of the Kuhn segment length. It is shown that two opposite A-type dipolar brushes from semi-rigid chains are attracted to each other at short distances. The attraction becomes more pronounced and begins at larger distances for more rigid chains with the same brush characteristics: polymerization degree, grafting density, and dipole moments of monomer units. This attraction is connected with the dipole-dipole interactions between chains of oncoming brushes with oppositely directed dipoles penetrating deeply into each other upon contact. This effect of the chain rigidity is opposite to that for conventional brushes without dipoles in the chains. For such brushes, an increase in the chain rigidity leads to the enhanced repulsion between them.

Impact of Charge Correlation, Chain Rigidity, and Chemical Specific Interactions on the Behavior of Weak Polyelectrolytes in Solution

2019 ◽  
Vol 123 (42) ◽  
pp. 8872-8888 ◽  
Author(s):  
Andrea Tagliabue ◽  
Lorella Izzo ◽  
Massimo Mella
Keyword(s):  
Specific Interactions ◽  
Chain Rigidity ◽  
Weak Polyelectrolytes

The gas separation performance adjustment of carbon molecular sieve membrane depending on the chain rigidity and free volume characteristic of the polymeric precursor

Carbon ◽  
2019 ◽  
Vol 143 ◽  
pp. 343-351 ◽  
Author(s):  
Chun-Po Hu ◽  
Clarisse K. Polintan ◽  
Lemmuel L. Tayo ◽  
Shang-Chih Chou ◽  
Hui-An Tsai ◽  
...  
Keyword(s):  
Free Volume ◽  
Gas Separation ◽  
Molecular Sieve ◽  
Separation Performance ◽  
Polymeric Precursor ◽  
Carbon Molecular Sieve ◽  
Chain Rigidity ◽  
Gas Separation Performance

Bimodal Crystallization Kinetics of PBT/PTHF Segmented Block Copolymers: Impact of the Chain Rigidity

2019 ◽  
Vol 52 (3) ◽  
pp. 1227-1240 ◽  
Author(s):  
André de Almeida ◽  
Matthias Nébouy ◽  
Guilhem P. Baeza
Keyword(s):  
Block Copolymers ◽  
Crystallization Kinetics ◽  
Chain Rigidity ◽  
Kinetics Of

Chain rigidity modification to promote the electrochemical performance of polymeric battery electrode materials

2019 ◽  
Vol 7 (17) ◽  
pp. 10581-10588 ◽  
Author(s):  
Zhihui Niu ◽  
Huaxi Wu ◽  
Lei Liu ◽  
Gaole Dai ◽  
Shiyun Xiong ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Power Density ◽  
High Power ◽  
Electrode Materials ◽  
High Power Density ◽  
Battery Materials ◽  
Chain Rigidity ◽  
Battery Electrode ◽  
Rigidity Modification

Tuning the chain rigidity enables high power density without sacrificing the volumetric energy density for polymeric battery materials.

Microrotor of a chain-grafted colloidal disk immersed in the active bath: The impact of particle concentration, grafting density, and chain rigidity

2018 ◽  
Vol 149 (16) ◽  
pp. 164902 ◽  
Author(s):  
Chao Wang ◽  
Hui-shu Li ◽  
Yu-qiang Ma ◽  
Wen-de Tian ◽  
Kang Chen
Keyword(s):  
Particle Concentration ◽  
Chain Rigidity ◽  
Grafting Density ◽  
A Chain ◽  
The Impact
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