Prediction of the glass transition temperature of semicrystalline polymer/salt complexes

2009 ◽  
Vol 47 (8) ◽  
pp. 793-798 ◽  
Author(s):  
Joo Hwan Koh ◽  
Jung Tae Park ◽  
Jong Kwan Koh ◽  
Jong Hak Kim
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Semicrystalline Polymer

Nondestructive Measurement of a Glass Transition Temperature at Spin-Cast Semicrystalline Polymer Surfaces

2001 ◽  
Vol 34 (8) ◽  
pp. 2395-2397 ◽  
Author(s):  
J. Hyun ◽  
D. E. Aspnes ◽  
J. J. Cuomo
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Semicrystalline Polymer ◽  
Polymer Surfaces ◽  
Nondestructive Measurement

Effect of sepiolite on glass transition temperature and melting behaviour of semicrystalline polymer blends

1991 ◽  
Vol 25 (3) ◽  
pp. 391-396 ◽  
Author(s):  
E. Morales ◽  
C. R. Herrero ◽  
J. L. Acosta
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Polymer Blends ◽  
Semicrystalline Polymer ◽  
Melting Behaviour

A Novel Poly(Ionic Liquid) as the Thermal Insulating Material

2020 ◽  
Vol 13 (3) ◽  
pp. 241-247
Author(s):  
Wenxin Wei ◽  
Guifeng Ma ◽  
Hongtao Wang ◽  
Jun Li
Keyword(s):  
Thermal Conductivity ◽  
Ionic Liquid ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Flame Resistance ◽  
Insulating Material ◽  
Low Thermal Conductivity ◽  
Thermal Insulating ◽  
Poly Ionic Liquid

Objective: A new poly(ionic liquid)(PIL), poly(p-vinylbenzyltriphenylphosphine hexafluorophosphate) (P[VBTPP][PF6]), was synthesized by quaternization, anion exchange reaction, and free radical polymerization. Then a series of the PIL were synthesized at different conditions. Methods: The specific heat capacity, glass-transition temperature and melting temperature of the synthesized PILs were measured by differential scanning calorimeter. The thermal conductivities of the PILs were measured by the laser flash analysis method. Results: Results showed that, under optimized synthesis conditions, P[VBTPP][PF6] as the thermal insulator had a high glass-transition temperature of 210.1°C, high melting point of 421.6°C, and a low thermal conductivity of 0.0920 W m-1 K-1 at 40.0°C (it was 0.105 W m-1 K-1 even at 180.0°C). The foamed sample exhibited much low thermal conductivity λ=0.0340 W m-1 K-1 at room temperature, which was comparable to a commercial polyurethane thermal insulating material although the latter had a much lower density. Conclusion: In addition, mixing the P[VBTPP][PF6] sample into polypropylene could obviously increase the Oxygen Index, revealing its efficient flame resistance. Therefore, P[VBTPP][PF6] is a potential thermal insulating material.

Sign in / Sign up

Export Citation Format

Share Document