Biphenylene as a Cross-Linking Site. Curing Conditions, Glass Transition Temperatures, and Moduli of High Molecular Weight Polyquinolines Containing Biphenylene Units in the Chain

1977 ◽  
Vol 10 (6) ◽  
pp. 1344-1350 ◽  
Author(s):  
A. Recca ◽  
J. Garapon ◽  
J. K. Stille
Keyword(s):  
Molecular Weight ◽  
Glass Transition ◽  
High Molecular Weight ◽  
Cross Linking ◽  
Transition Temperatures ◽  
Glass Transition Temperatures ◽  
Curing Conditions

Glass Transition Behavior of Polyisoprene: The Influence of Molecular Weight, Terminal Hydroxy Groups, Microstructure, and Chain Branching

1982 ◽  
Vol 55 (1) ◽  
pp. 245-252 ◽  
Author(s):  
C. Kow ◽  
M. Morton ◽  
L. J. Fetters ◽  
N. Hadjichristidis
Keyword(s):  
Molecular Weight ◽  
Differential Scanning Calorimetry ◽  
Glass Transition ◽  
Low Molecular Weight ◽  
Hydroxyl Groups ◽  
Transition Temperatures ◽  
Scanning Calorimetry ◽  
Chain Branching ◽  
Glass Transition Temperatures ◽  
Hydroxy Groups

Abstract The glass transition temperatures for a series of high-1,4 linear and star-branched polyisoprenes have been measured by differential scanning calorimetry. The Fox-Flory relation for the linear polyisoprenes was found to be Tg=Tg∞−1.76×104Mn−1. The influence of hydroxyl groups on Tg was also examined for low molecular weight (<2.2×104) polyisoprenes.

Sign in / Sign up

Export Citation Format

Share Document