Kinetics of poly(ethylene oxide) crystallization from solution: temperature and molecular weight dependence

1991 ◽  
Vol 24 (13) ◽  
pp. 3906-3914 ◽  
Author(s):  
Ni Ding ◽  
Eric J. Amis
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Solution Temperature ◽  
Molecular Weight Dependence ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Kinetics Of ◽  
Crystallization From Solution

scholarly journals Isothermal Crystallization Kinetics of Poly(ethylene oxide)/Poly(ethylene glycol)-g-silica Nanocomposites

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 648
Author(s):  
Xiangning Wen ◽  
Yunlan Su ◽  
Shaofan Li ◽  
Weilong Ju ◽  
Dujin Wang
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Crystallization Kinetics ◽  
Isothermal Crystallization ◽  
Crystallization Rate ◽  
Poly Ethylene Glycol ◽  
Isothermal Crystallization Kinetics ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Kinetics Of

In this work, the crystallization kinetics of poly(ethylene oxide) (PEO) matrix included with poly(ethylene glycol) (PEG) grafted silica (PEG-g-SiO2) nanoparticles and bare SiO2 were systematically investigated by differential scanning calorimetry (DSC) and polarized light optical microscopy (PLOM) method. PEG-g-SiO2 can significantly increase the crystallinity and crystallization temperature of PEO matrix under the non-isothermal crystallization process. Pronounced effects of PEG-g-SiO2 on the crystalline morphology and crystallization rate of PEO were further characterized by employing spherulitic morphological observation and isothermal crystallization kinetics analysis. In contrast to the bare SiO2, PEG-g-SiO2 can be well dispersed in PEO matrix at low P/N (P: Molecular weight of matrix chains, N: Molecular weight of grafted chains), which is a key factor to enhance the primary nucleation rate. In particular, we found that the addition of PEG-g-SiO2 slows the spherulitic growth fronts compared to the neat PEO. It is speculated that the interfacial structure of the grafted PEG plays a key role in the formation of nuclei sites, thus ultimately determines the crystallization behavior of PEO PNCs and enhances the overall crystallization rate of the PEO nanocomposites.

Molecular Weight Dependence of Surface Tension and Refractive Index for Some Poly(ethylene oxide) Derivatives

1969 ◽  
Vol 2 (6) ◽  
pp. 681-682 ◽  
Author(s):  
G. W. Bender ◽  
D. G. LeGrand ◽  
G. L. Gaines
Keyword(s):  
Molecular Weight ◽  
Surface Tension ◽  
Refractive Index ◽  
Ethylene Oxide ◽  
Molecular Weight Dependence ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Hydrodynamic studies on adsorption of poly(ethylene oxide) in porous media. 2. Molecular weight dependence of hydrodynamic thickness

1984 ◽  
Vol 17 (10) ◽  
pp. 2063-2065 ◽  
Author(s):  
Masami Kawaguchi ◽  
Masaaki Mikura ◽  
Akira Takahashi
Keyword(s):  
Molecular Weight ◽  
Porous Media ◽  
Ethylene Oxide ◽  
Molecular Weight Dependence ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Hydrodynamic Thickness

Thickening Process and Kinetics of Lamellar Crystals of a Low Molecular Weight Poly(ethylene oxide)

2007 ◽  
Vol 40 (12) ◽  
pp. 4386-4388 ◽  
Author(s):  
Xiong-Feng Tang ◽  
Xiao-Jin Wen ◽  
Xue-Mei Zhai ◽  
Nan Xia ◽  
Wei Wang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Low Molecular Weight ◽  
Poly Ethylene Oxide ◽  
Lamellar Crystals ◽  
Poly Ethylene ◽  
Kinetics Of

scholarly journals Molecular weight dependence of crystal pattern transitions of poly(ethylene oxide)

2013 ◽  
Vol 31 (5) ◽  
pp. 798-808 ◽  
Author(s):  
Guo-liang Zhang ◽  
Liu-xin Jin ◽  
Ping Zheng ◽  
Wei Wang ◽  
Xiao-jing Wen
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Molecular Weight Dependence ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Isothermal thickening and thinning processes in low molecular-weight poly(ethylene oxide) fractions crystallized from the melt. 3. Molecular weight dependence

1992 ◽  
Vol 25 (5) ◽  
pp. 1453-1460 ◽  
Author(s):  
Stephen Z. D. Cheng ◽  
Jianhua Chen ◽  
Jeffrey S. Barley ◽  
Anqiu Zhang ◽  
Anton Habenschuss ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Low Molecular Weight ◽  
Molecular Weight Dependence ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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