Investigation by TGA, DSC and DMA Urethane-Imide Copolymers with High Content of Hard Imide Blocks

2019 ◽  
Vol 822 ◽  
pp. 224-229
Author(s):  
Andrei Didenko ◽  
Valentina Smirnova ◽  
Elena Popova ◽  
Gleb Vaganov ◽  
Alexey Ivanov ◽  
...  
Keyword(s):  
Phase Separation ◽  
Diethylene Glycol ◽  
Relative Content ◽  
Glycol Adipate ◽  
Variable Content

Poly (diethylene glycol) adipate diol, tolylene-2,4-diisocyanate, 1,3-bis (3',4-dicarboxylphenoxy) benzene and 1,4-bis (4'-aminophenoxy) biphenyl were used as monomers to form statistical copoly (urethane-imide) s with variable content of imide blocks (from 37 to 65% (wt)). The copolymers imide blocks on the Tg and Tm values relative content increasing effect was traced, which is associated with the phase separation of hard imide and flexible polyester blocks in the systems studied.

Thermal Properties of Ester-Type Easy Cationic Dyeable Poly(ethylene Terephthalate) (ECDP) Polymers

2010 ◽  
Vol 44-47 ◽  
pp. 2409-2413 ◽  
Author(s):  
Yu Sun ◽  
Guo Zheng ◽  
Hong Xiang Yang ◽  
Yan Jun Liu ◽  
Xiao Ning Li
Keyword(s):  
Thermal Properties ◽  
Diethylene Glycol ◽  
Ethylene Terephthalate ◽  
Glycol Succinate ◽  
Glycol Adipate ◽  
Scanning Calorimetry ◽  
Poly Ethylene Terephthalate ◽  
Monomer Content ◽  
Diethylene Glycol Succinate ◽  
Poly Ethylene

This study investigated the thermal properties of ester-type easy cationic dyeable poly(ethylene terephthalate) (ECDP) polymers using differential scanning calorimetry (DSC), therogravimetric analysis (TGA). The mass ratios of 5-sodium sulfo bis(-hydroxyethyl) isophthalate(SIPE) for ECDP polymers were 2.8%, 5.5%, 6.8%, respectively. The fourth monomers were diethylene glycol adipate (DGA), diethylene glycol succinate (DGS) and diethylene glycol subacate (DES) with different contents. The results suggested that the Tg of ester-type ECDP decreased with the increasing the molecule weight of the fourth monomer at fixed SIPE and fourth monomer contents. The Tch of ECDP polymer to be lower than that of the CDP polymer with the same SIPE content. And it decreased as SIPE and fourth monomer contents increased, it also decreased with the increasing of the molecule weight of the fourth monomer given the same SIPE content. The effect of the ester-type soft segments reduced the Tm of ECDP. The thermal stability of ECDP polymer was less than PET and CDP polymers, and it decreased with increasing SIPE content, but increased with the ester-type fourth monomer content increasing.

Phase segregation in diethylene glycol (adipate-terephthalate) co-oligomers

1991 ◽  
Vol 33 (9) ◽  
pp. 1856-1861 ◽  
Author(s):  
A.T. Gubaidullin ◽  
B.Ya. Teitel'Baum ◽  
N.P. Apukhtina ◽  
S.M. Yakzhina ◽  
T.A. Yagfarova
Keyword(s):  
Diethylene Glycol ◽  
Phase Segregation ◽  
Glycol Adipate

Intrinsic viscosities of diethylene glycol adipate solutions of various functionalities

1982 ◽  
Vol 24 (5) ◽  
pp. 1144-1150 ◽  
Author(s):  
N.N. Filatova ◽  
D.Ya. Rossina ◽  
V.V. Yevreinov ◽  
S.G. Entelis
Keyword(s):  
Diethylene Glycol ◽  
Glycol Adipate

Characterization of Poly(Diethylene Glycol Adipate -co- Neopentylglycol Adipate) as a New Plasticizer for Poly(Lactic Acid)

2013 ◽  
Vol 706-708 ◽  
pp. 28-31
Author(s):  
Tong Wan ◽  
Si Zhang ◽  
Tao Du
Keyword(s):  
Lactic Acid ◽  
Shear Rate ◽  
Diethylene Glycol ◽  
Parallel Plate ◽  
Chemical Structure ◽  
Poly Lactic Acid ◽  
Glycol Adipate ◽  
H Nmr ◽  
Biodegradable Blends

A new poly (diethylene glycol adipate -co- neopentylglycol adipate) (PDNA) was synthesized from diethylene glycol adipate (DEAP) with neopentylglycol adipate (NPAP). The chemical structure of PDNA was characterized by 1H-NMR. PLA was plasticized by various amount of PDNA to obtain biodegradable blends. The effects of both temperature and shear rate on the rheologies of PLA/PDNA blends were evaluated by a parallel plate rheometer.

Poly(diethylene glycol adipate): A Study of Its Behavior as a PVC Plasticizer

1993 ◽  
Vol 32 (1-2) ◽  
pp. 155-165 ◽  
Author(s):  
S. F. Zawadzki ◽  
D. Tabak ◽  
L. Akcelrud
Keyword(s):  
Diethylene Glycol ◽  
Glycol Adipate

Nonisothermal Crystallization Behavior of Poly(vinylidenefluoride)/Polysulfone/Diethylene Glycol Dibenzoate/Dibutyl Phthalate System via Thermally Induced Phase Separation

2015 ◽  
Vol 1120-1121 ◽  
pp. 581-585
Author(s):  
Jing Zhang ◽  
Lu Qi ◽  
Zhen Yu Cui
Keyword(s):  
Phase Separation ◽  
Diethylene Glycol ◽  
Crystallization Behavior ◽  
Dibutyl Phthalate ◽  
Vinylidene Fluoride ◽  
Thermally Induced Phase Separation ◽  
Scanning Calorimetry ◽  
Nonisothermal Crystallization ◽  
Thermally Induced ◽  
Poly Vinylidene Fluoride

Differential scanning calorimetry (DSC) measurement is used to investigate the nonisothermal crystallization behavior of poly (vinylidene fluoride) (PVDF)/polysulfone (PSF)/diethylene glycol dibenzoate (DEDB)/dibutyl phthalate (DBP) system via solid-liquid (S-L) phase separation during a thermally induced phase separation process. The effect of benzene ring in PSF on PVDF crystallization for PVDF/PSF/DEDB/DBP system is investigated. It is found that the Ozawa model can describe nonisothermal crystallization behavior of PVDF/PSF/DEDB/DBP system in a certain crystallization temperature range. Jeziorny method indicates that the secondary crystallization of PVDF exists in the process of nonisothermal crystallization and is enhanced by the increase of cooling rate.

Thermal, rheological, and mechanical properties of polylactide/poly(diethylene glycol adipate)

2013 ◽  
Vol 70 (12) ◽  
pp. 3487-3500 ◽  
Author(s):  
Hongyu Liang ◽  
Yanping Hao ◽  
Sanrong Liu ◽  
Huiliang Zhang ◽  
Yuesheng Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Diethylene Glycol ◽  
Glycol Adipate
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