Flexible plasticized PLA with high crystallinity obtained by controlling the annealing temperature

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Xiang-Hai Ran ◽  
Zhi-Yuan Jia ◽  
Yu-Ming Yang ◽  
Li-Song Dong
Keyword(s):  
Thermal Properties ◽  
Ethylene Glycol ◽  
Annealing Temperature ◽  
Tensile Tests ◽  
Poly Ethylene Glycol ◽  
Elongation At Break ◽  
Crystallization Morphology ◽  
The Difference ◽  
Poly Ethylene ◽  
High Flexibility

AbstractIn this study, plasticized polylactide (PLA) was prepared by blending PLA with high stereoregularity and poly(ethylene glycol-co-propylene glycol) (PEPG) in a batch wise mixer and pressed into films. The influence of annealing temperature on the thermal properties and tensile properties of quenched plasticized PLA was investigated by DSC, DMA and tensile tests. It was found that plasticized PLA after cold crystallization can keep its high flexibility with an elongation at break over 300% by choosing a proper annealing temperature. The difference of crystallization morphology formed at the different annealing temperature was thought as a possible reason for this result.

scholarly journals Synthesis and Thermal Properties of Poly(ethylene glycol)-polydimetylsiloxane Crosslinked Copolymers

2018 ◽  
Vol 47 (6) ◽  
pp. 1117-1122
Author(s):  
Ain Athirah Zainuddin ◽  
Rizafizah Othaman ◽  
Wan Syaidatul Aqma Wan Mohd Noor, ◽  
Takeno Akiyoshi ◽  
Takahashi Shinya ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Effects of Molecular Weight of Poly(ethylene glycol) on the Thermal Properties and the Alkaline Hydrolysis of Copolyesters

2012 ◽  
Vol 49 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Young-June Kim ◽  
Min-Ho Jee ◽  
Eun-Hee Lee ◽  
Jin-Uk Choi ◽  
Dong-Hyun Noh ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Thermal Properties ◽  
Ethylene Glycol ◽  
Alkaline Hydrolysis ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Hydrolysis Of

Tailored design of renewable copolymers based on poly(1,4-butylene 2,5-furandicarboxylate) and poly(ethylene glycol) with refined thermal properties

2018 ◽  
Vol 9 (6) ◽  
pp. 722-731 ◽  
Author(s):  
A. F. Sousa ◽  
N. Guigo ◽  
M. Pożycka ◽  
M. Delgado ◽  
J. Soares ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Tailored Design

New copolymers based on renewable PBF/PEGF are tailored to show advantageous processing features as compared to PBF (enlarged working temperatures and no crystallisation at slow rates).

Effects of Graphene Nanopletelets on Poly(Lactic Acid)/Poly(Ethylene Glycol) Polymer Nanocomposites

2014 ◽  
Vol 1024 ◽  
pp. 136-139 ◽  
Author(s):  
Buong Woei Chieng ◽  
Ibrahim Nor Azowa ◽  
Wan Yunus Wan Md Zin ◽  
Mohd Zobir Hussein
Keyword(s):  
Lactic Acid ◽  
Ethylene Glycol ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
Poly Lactic Acid ◽  
Poly Ethylene Glycol ◽  
Elongation At Break ◽  
Sem Image ◽  
Blending Method ◽  
Poly Ethylene

Graphene nanoplatelets (xGnP) were investigated as a novel nanoreinforcement filler in poly (lactic acid)(PLA)/poly (ethylene glycol)(PEG) blends by melt blending method. The prepared nanocomposites exhibited a significant improvement in tensile properties at a low xGnP loading. The tensile properties demonstrated the addition of 0.3wt% of xGnP led to an increase of up to 32.7%, 69.5% and 21.9% in tensile strength, tensile modulus and elongation at break of the nanocomposites respectively, compared to PLA/PEG blend. The nanocomposites also shows enhanced thermal stability compared with PLA/PEG blend in thermogravimetry analysis (TGA). Scanning electron microscopy (SEM) image of PLA/PEG/0.3wt% xGnP displays good uniformity and more homogenous morphology.

scholarly journals Studies on Chemical IR Images of Poly(hydroxybutyrate–co–hydroxyhexanoate)/Poly(ethylene glycol) Blends and Two-Dimensional Correlation Spectroscopy

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 507 ◽  
Author(s):  
Yeonju Park ◽  
Sila Jin ◽  
Yujeong Park ◽  
Soo Kim ◽  
Isao Noda ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Thermal Properties ◽  
Ethylene Glycol ◽  
Correlation Spectroscopy ◽  
Two Dimensional ◽  
Poly Ethylene Glycol ◽  
Biodegradable Poly ◽  
Poly Ethylene ◽  
Increasing Temperature ◽  
Kinetics Of

Biodegradable poly-[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyhexanoates] (PHBHx) have been widely studied for their applications in potentially replacing petroleum-based thermoplastics. In this study, the effect of the high molecular weight (Mn = 3400) poly(ethylene glycol) (PEG) blended in the films of PHBHx with different ratios of PEG was investigated using chemical FTIR imaging. Chemical IR images and FTIR spectra measured with increasing temperature revealed that PEG plays an important role in changing the kinetics of PHBHx crystallization. In addition, two-dimensional correlation spectra clearly showed that thermal properties of PHBHx/PEG blend film changed when the blending ratio of PHBHx/PEG were 60/40 and 50/50. Consequently, PEG leads to changes in the thermal behavior of PHBHx copolymers.

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