New Insights Into Segmental Packing, Chain Dynamics and Thermomechanical Performance of Aliphatic Polyurea Composites: Comparison Between Silica Oxides and Titanium (III) Oxides

2021 ◽  
pp. 2100582
Author(s):  
Khanisya Palaniandy ◽  
Sheik Ambarine Banon Auckloo ◽  
Giuseppe Cavallaro ◽  
Eng‐Seng Chan ◽  
Pooria Pasbakhsh
Keyword(s):  
Chain Dynamics

Is the chain dynamics in thin polymer films isotropic ?

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-233-Pr7-237 ◽  
Author(s):  
S. Rivillon ◽  
P. Auroy ◽  
B. Deloche
Keyword(s):  
Polymer Films ◽  
Thin Polymer Films ◽  
Chain Dynamics ◽  
Thin Polymer

Study of polymer chain dynamics in solution by time-resolved spectrofluorometry

1989 ◽  
Vol 54 (11) ◽  
pp. 3011-3024 ◽  
Author(s):  
Vlastimil Fidler ◽  
Stefan Vajda ◽  
Zuzana Limpouchová ◽  
Jiří Dvořák ◽  
Karel Procházka ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Conformational Changes ◽  
Methacrylic Acid ◽  
Correlation Time ◽  
General Level ◽  
Polymeric Chain ◽  
Relative Molecular Mass ◽  
Chain Dynamics ◽  
Time Resolved ◽  
Covalently Bonded

The methodology of polarization time-resolved fluorometry and interpretation of its results are outlined at a general level, and the measurement on and use of facilities of the Edinburgh Instruments Model 299T apparatus are discussed in detail. The dynamics of conformational changes in chains of poly(methacrylic acid) containing covalently bonded dansyl labels are studied in aqueous solutions at various pH. It is shown that at pH > 6, the shorter effective rational correlation time τr < 2 ns corresponds to the rotation of the free dansyl label about bonds by which it is attached to the polymeric chain; at pH < 4 the longer effective rational correlation time τr = 20-26 ns corresponds to the rotation of the compact spherical formation constituted by a part of the collapsed polymeric chain in which the label is fixed and whose relative molecular mass is approx. 15 000-20 000.

Synergistic effects of chain dynamics and enantiomeric interaction on the crystallization in PDLA/PLLA mixtures

Polymer ◽  
2021 ◽  
pp. 123648
Author(s):  
Tongxin Lv ◽  
Jingqing Li ◽  
Shaoyong Huang ◽  
Huiying Wen ◽  
Hongfei Li ◽  
...  
Keyword(s):  
Synergistic Effects ◽  
Chain Dynamics

Flexible Biradicals in Liquid and Supercritical Carbon Dioxide:  The Exchange Interaction, the Chain Dynamics, and a Comparison with Conventional Solvents

2006 ◽  
Vol 110 (5) ◽  
pp. 1767-1774 ◽  
Author(s):  
Malcolm D. E. Forbes ◽  
Katerina E. Dukes ◽  
Nikolai I. Avdievich ◽  
Elizabeth J. Harbron ◽  
Joseph M. DeSimone
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Exchange Interaction ◽  
Chain Dynamics ◽  
Supercritical Carbon

Simulation of polymer chain dynamics by lattice models with excluded volume: lattice dependence

1987 ◽  
Vol 20 (6) ◽  
pp. 1362-1368 ◽  
Author(s):  
Peter H. Verdier ◽  
David E. Kranbuehl
Keyword(s):  
Polymer Chain ◽  
Lattice Models ◽  
Excluded Volume ◽  
Chain Dynamics
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