Molecular Weight Dependence of Glassy Dynamics in Linear Polymers Revisited

2008 ◽  
Vol 41 (23) ◽  
pp. 9335-9344 ◽  
Author(s):  
J. Hintermeyer ◽  
A. Herrmann ◽  
R. Kahlau ◽  
C. Goiceanu ◽  
E. A. Rössler
Keyword(s):  
Molecular Weight ◽  
Linear Polymers ◽  
Glassy Dynamics ◽  
Molecular Weight Dependence

Molecular weight dependence of the conformational phase transition and electroluminescence of diarylpolysilane diodes

2000 ◽  
Vol 88 (6) ◽  
pp. 3408-3413 ◽  
Author(s):  
Satoshi Hoshino ◽  
Kazuaki Furukawa ◽  
Keisuke Ebata ◽  
Ingo Breyl ◽  
Hiroyuki Suzuki
Keyword(s):  
Phase Transition ◽  
Molecular Weight ◽  
Molecular Weight Dependence

Composition and molecular-weight dependence of the glass transition in polystyrene-poly(2,6-dimethylphenylene ether) blends

Polymer ◽  
1988 ◽  
Vol 29 (12) ◽  
pp. 2235-2243 ◽  
Author(s):  
Marco Aurelio de Araujo ◽  
Reimund Stadler ◽  
Hans-Joachim Cantow
Keyword(s):  
Molecular Weight ◽  
Glass Transition ◽  
Molecular Weight Dependence

Power law of molecular weight dependence of lateral growth rate of isotactic polypropylene

Polymer ◽  
2006 ◽  
Vol 47 (21) ◽  
pp. 7601-7606 ◽  
Author(s):  
Koji Yamada ◽  
Kaori Watanabe ◽  
Kiyoka Okada ◽  
Akihiko Toda ◽  
Masamichi Hikosaka
Keyword(s):  
Molecular Weight ◽  
Growth Rate ◽  
Power Law ◽  
Isotactic Polypropylene ◽  
Lateral Growth ◽  
Molecular Weight Dependence ◽  
Lateral Growth Rate

Processability predictions for mechanically recycled blends of linear polymers

2020 ◽  
Vol 40 (9) ◽  
pp. 771-781
Author(s):  
Janne van Gisbergen ◽  
Jaap den Doelder
Keyword(s):  
Molecular Weight ◽  
Circular Economy ◽  
Melt Flow Index ◽  
Building Blocks ◽  
Experimental Designs ◽  
New Method ◽  
Flow Index ◽  
Linear Polymers ◽  
Combined Method

AbstractRecycling of thermoplastic polymers is an important element of sustainable circular economy practices. The quality of mechanically recycled polymers is a concern. A method is presented to predict the structure and processability of recycled blends of polymers based on processability knowledge of their virgin precursor components. Blending rules at molecular weight distribution level are well established and form the foundation of the new method. Two essential fundamental building blocks are combined with this foundation. First, component and blend structure are related to viscosity via tube theories. Second, viscosity is related to melt flow index via a continuum mechanics approach. Emulator equations are built based on virtual experimental designs for fast forward and reverse calculations directly relating structure to viscosity and processability. The new combined method is compared with empirical blend rules, and shows important similarities and also clear quantitative differences. Finally, the new method is applied to practical recycling quality challenges.

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