Study of polylactic acid electret by dielectric spectroscopy

2016 ◽  
Author(s):  
E. Galikhanov ◽  
I. Lounev ◽  
A. Guzhova ◽  
Yu. Gusev ◽  
M. Galikhanov ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Dielectric Spectroscopy

scholarly journals Formation of Stereocomplex Crystal and Its Effect on the Morphology and Property of PDLA/PLLA Blends

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2515
Author(s):  
Xiaolong Su ◽  
Lihua Feng ◽  
Demei Yu
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Polylactic Acid ◽  
Dielectric Spectroscopy ◽  
Degree Of Crystallinity ◽  
Cross Linking ◽  
Processing Conditions ◽  
Mass Ratio ◽  
Mechanism Of Formation ◽  
The Degree Of Crystallinity

Stereocomplex-polylactic acid (SC-PLA) is obtained in poly(d-lactic) acid/poly(l-lactic) acid (PDLA/PLLA) blends under adjusting processing conditions. It is found that the degree of crystallinity of overall SC-PLA is up to 43.7% in PDLA/PLLA blends of 1:1 mass ratio. Formation of stereocomplex (SC) crystals forces molecular chains in the blends to be more closely arranged and further enhances interaction between molecular chains, thus forming a physical cross-linking network in the SC crystals, resulting in the blends having a special microstructure. The mechanism of formation of the SC crystal physical cross-linking network is elucidated by dielectric spectroscopy, and the relationships between homocomplex (HC) crystals, SC crystals, and amorphous regions in the blends are also analyzed. Interestingly, mechanical properties of the blends are significantly improved due to formation of an SC crystal cross-linking network.

Study of electret state in polylactic acid with nanosized filler by dielectric spectroscopy

2016 ◽  
Author(s):  
A. A. Guzhova ◽  
I. V. Lounev ◽  
M. F. Galikhanov ◽  
Yu. A. Gusev ◽  
M. A. Vasilyeva ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Dielectric Spectroscopy ◽  
Electret State ◽  
Nanosized Filler

Open-ended MEMS Probes for Dielectric Spectroscopy of Biological Cells at Radio Frequencies

PIERS Online ◽  
2009 ◽  
Vol 5 (3) ◽  
pp. 251-255 ◽  
Author(s):  
Hsin-Hung Li ◽  
Jen-Yu Jao ◽  
Ming-Kun Chen ◽  
Ling-Sheng Jang ◽  
Yi-Chu Hsu
Keyword(s):  
Dielectric Spectroscopy ◽  
Biological Cells ◽  
Radio Frequencies

Polylactic acid “LACEA”

2002 ◽  
Author(s):  
Nobuyuki Kawashima ◽  
Shinji Ogawa ◽  
Shoji Obuchi ◽  
Mitsunori Matsuo ◽  
Tadashi Yagi
Keyword(s):  
Polylactic Acid

Preparation of visualized iodized oil-5-fluorouracil loaded polylactic acid microspheres

2010 ◽  
Vol 30 (10) ◽  
pp. 1100-1103 ◽  
Author(s):  
Xin-xia WANG ◽  
Li ZHANG ◽  
Gui-chen ZHOU ◽  
Guo-qing ZHANG ◽  
Ying LU ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Iodized Oil

Preparation and characterization of hydroxyapatite-polylactic acid HA-PLA composite film

2016 ◽  
Vol 33 (1) ◽  
pp. 10 ◽  
Author(s):  
Qiuhua Yuan ◽  
Jianbo Wu ◽  
Caoping Qin ◽  
Zhiwei Guo ◽  
Jiayu Liu ◽  
...  
Keyword(s):  
Composite Film ◽  
Polylactic Acid

Dielectric Spectroscopy of Semiconductors

1988 ◽  
Author(s):  
Andrew K. Jonscher ◽  
Mohammad A. Bari
Keyword(s):  
Dielectric Spectroscopy
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