Confinement Induced First Order Crystallization Kinetics for the Poly(ethylene oxide) Block within A PEO-b -PB Diblock Copolymer Infiltrated within Alumina Nano-Porous Template

2014 ◽  
Vol 337 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Rose Mary Michell ◽  
Iwona Blaszczyk-Lezak ◽  
Carmen Mijangos ◽  
Alejandro J. Müller
Keyword(s):  
Ethylene Oxide ◽  
Crystallization Kinetics ◽  
Diblock Copolymer ◽  
First Order ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

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 Dynamics Study of Polystyrene-b-poly(ethylene oxide) Asymmetric Diblock Copolymer Systems

Langmuir ◽  
2017 ◽  
Vol 33 (36) ◽  
pp. 8856-8868 ◽  
Author(s):  
M. Dobies ◽  
M. Makrocka-Rydzyk ◽  
J. Jenczyk ◽  
M. Jarek ◽  
R. J. Spontak ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Ethylene Oxide ◽  
Diblock Copolymer ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Synthesis and self-assembly of a novel amphiphilic diblock copolymer consisting of isotactic polystyrene and 1,4-trans-polybutadiene-graft-poly(ethylene oxide)

RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 12752-12759
Author(s):  
HuaQing Liang ◽  
QiHua Zhou ◽  
YongJiang Long ◽  
WanChu Wei ◽  
Shuo Feng ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Diblock Copolymer ◽  
Self Assembly ◽  
Amphiphilic Diblock Copolymer ◽  
Isotactic Polystyrene ◽  
Poly Ethylene Oxide ◽  
Assembly Behavior ◽  
Poly Ethylene

Herein, a novel amphiphilic diblock copolymer consisting of isotactic polystyrene and 1,4-trans-polybutadiene-graft-poly(ethylene oxide) was synthesized and its self-assembly behavior was investigated.

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