Effect of diethylene glycol content and annealing temperature on the structure and properties of poly(ethylene terephthalate)

1986 ◽  
Vol 32 (2) ◽  
pp. 3371-3392 ◽  
Author(s):  
I. Seganov ◽  
J. M. Schultz ◽  
S. Fakirov
Keyword(s):  
Diethylene Glycol ◽  
Ethylene Terephthalate ◽  
Annealing Temperature ◽  
Structure And Properties ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

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.

Structure and Properties of Blends of Polycarbonate and Poly(Ethylene-Terephthalate-Co-p-Hydroxybenzoate): Phase Diagram and Mechanical Behavior

1989 ◽  
Vol 171 ◽  
Author(s):  
Robert Kosfeld ◽  
Frank Schubert ◽  
Michael Hess ◽  
Witold Brostow
Keyword(s):  
Phase Diagram ◽  
Liquid Crystal ◽  
Thermal Behavior ◽  
Polymer Blends ◽  
Ethylene Terephthalate ◽  
Structure And Properties ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Equilibrium Phases ◽  
Polymer Liquid Crystal

ABSTRACTThe investigation of the thermal behavior of polymer blends leads to phase diagrams which involve Important information about the system. From these diagrams, equilibrium as well as non-equilibrium phases can be deduced and ranges of miscibility or partial miscibility of the polymers become obvious. Hence the diagrams are of a great value for processing of advanced polymer blends, especially If a polyphasic polymers such as a polymer liquid crystal is one of the constituents of the system.

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