Investigations on aromatic polyesters with polynaphthalene systems in the main chain—IX. Influence of the chain structure of aromatic copolyesters on their glass transition temperatures

1979 ◽  
Vol 15 (2) ◽  
pp. 103-106 ◽  
Author(s):  
D. Sek ◽  
Z. Jedliński
Keyword(s):  
Glass Transition ◽  
Main Chain ◽  
Chain Structure ◽  
Transition Temperatures ◽  
Glass Transition Temperatures ◽  
Aromatic Polyesters

New main chain nonlinear optical polymers with high glass transition temperatures

1992 ◽  
Vol 28 (4) ◽  
pp. 381-388 ◽  
Author(s):  
Michael A. Mitchell ◽  
James E. Mulvaney ◽  
H. K. Hall ◽  
Craig S. Willand ◽  
Hillary Hampsch ◽  
...  
Keyword(s):  
Glass Transition ◽  
Nonlinear Optical ◽  
Main Chain ◽  
Transition Temperatures ◽  
Optical Polymers ◽  
Glass Transition Temperatures ◽  
Nonlinear Optical Polymers

Synthesis of novel organic-soluble high-temperature aromatic polymers

1995 ◽  
Vol 7 (3) ◽  
pp. 337-345 ◽  
Author(s):  
Yoshio Imai
Keyword(s):  
Glass Transition ◽  
High Temperature ◽  
Main Chain ◽  
Phenyl Group ◽  
Current Work ◽  
Transition Temperatures ◽  
Polymer Backbone ◽  
Glass Transition Temperatures ◽  
Aromatic Polyamides ◽  
Polymer Main Chain

This paper reviews our current work on the synthesis of new organic-soluble aromatic polyamides and polyimides having high glass transition temperatures above 300 °C. Our strategy to achieve this goal is to introduce a bulky pendant phenyl group along the polymer backbone and to incorporate a crank and twisted non-coplanar structure into the polymer main chain.

Aromatic polyesters from biosuccinic acid

2018 ◽  
Vol 9 (30) ◽  
pp. 4113-4119 ◽  
Author(s):  
Gabriel N. Short ◽  
Ha T. H. Nguyen ◽  
Patricia I. Scheurle ◽  
Stephen A. Miller
Keyword(s):  
Glass Transition ◽  
Building Blocks ◽  
Transition Temperatures ◽  
Glass Transition Temperatures ◽  
Sugar Fermentation ◽  
Aromatic Polyesters

Biosuccinic acid, obtainedviasugar fermentation, is cyclodimerized and oxidized to yield building blocks for aromatic polyesters with high glass transition temperatures.

Effect of the side chain structure on the glass transition temperatures of some poly(thiocarbonate)S

1986 ◽  
Vol 105 ◽  
pp. 149-160 ◽  
Author(s):  
M. Yazdani-Pedram ◽  
E. Soto ◽  
L.H. Tagle ◽  
F.R. Diaz ◽  
L. Gargallo ◽  
...  
Keyword(s):  
Glass Transition ◽  
Chain Structure ◽  
Side Chain ◽  
Transition Temperatures ◽  
Glass Transition Temperatures

scholarly journals Synthesis and Characterization of New Organosoluble and Thermally Stable Poly(thioether-amide)s Bearing Pyridine Subunit in the Main Chain

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Esmael Rostami ◽  
Maryam Bagherzadeh ◽  
Tahereh Alinassab ◽  
Maryam Mohammadpour ◽  
Masume Zangooei ◽  
...  
Keyword(s):  
Weight Loss ◽  
Glass Transition ◽  
Main Chain ◽  
Transition Temperatures ◽  
Thermal Stabilities ◽  
Glass Transition Temperatures ◽  
H Nmr ◽  
Good Solubility ◽  
Amorphous Structures

We report the synthesis of new polyamides containing 2,6-bis(2-thio-2-(4-carboxyphenyl)-1-oxo)pyridine subunit, under microwave irradiation using Yamasaki phosphorylation method. The solubility, thermal behavior, and viscosity of polyamides were evaluated. The structures of polymers have been characterized using IR and 1H NMR spectroscopy. These polyamides showed good solubility, viscosity, high thermal stability, and glass transition temperatures. Their viscosities and glass transition temperatures are in the range of 0.63–0.88 and 223–295°C, respectively. Thermal stabilities for 10% weight loss (T10) are 137–173°C and for 50% weight loss (T50) are in the range of 483–523°C. The study of surface morphology showed particle and amorphous structures.

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