Poly(n-Butyl acrylate)/polystyrene interpenetrating polymer networks and related materials. II. Aspects of molecular mixing via modulus-temperature studies

1981 ◽  
Vol 21 (11) ◽  
pp. 696-702 ◽  
Author(s):  
J. K. Yeo ◽  
L. H. Sperling ◽  
D. A. Thomas
Keyword(s):  
Butyl Acrylate ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Molecular Mixing

Poly(Butadiene)/Poly(Styrene) Interpenetrating Polymer Networks

1972 ◽  
Vol 45 (6) ◽  
pp. 1582-1596 ◽  
Author(s):  
A. J. Curtius ◽  
M. J. Covitch ◽  
D. A. Thomas ◽  
L. H. Sperling
Keyword(s):  
Polymer Networks ◽  
Impact Resistance ◽  
Charpy Impact ◽  
Theoretical Work ◽  
Interpenetrating Polymer Networks ◽  
Molecular Mixing ◽  
Recent Theoretical Work ◽  
Wide Range ◽  
Electron Microscopical ◽  
Two Phases

Abstract Interpenetrating polymer networks (IPN's) of poly (butadiene) (PB) and poly(styrene) (PS) were prepared using both random (containing 36 per cent cis, 55 per cent trans, and 9 per cent 1,2 vinyl) PB and high-cis PB. For both series, a wide range of PB/PS compositions were synthesized. Using samples stained with osmium tetroxide, electron microscopical studies revealed an irregular cellular structure of a few hundred A˚ngstrom diameter with the first component, PB, making up the cell walls. The size of the cells was found to depend on the PB crosslink density for the random materials. Modulus-temperature data revealed two distinct glass transitions, confirming the finding of two phases by microscopy. However, the transition temperature and transition slope varied with composition, and with the microstructure of the poly (butadiene), giving evidence of significant molecular mixing. Stress-strain data on the IPN's showed that materials rich in PB behave like self-reinforced elastomers. Charpy impact resistance experiments on materials rich in PS indicated values of 5 ft-lb/in. of notch, which compares well with graft-type polyblends of similar PB/PS composition. The results were interpreted in the light of the recent theoretical work of Bragaw, who considered the importance of the distances between domain boundaries with respect to crack acceleration mechanics. Although the IPN's considered herein exhibited somewhat less than the predicted optimum phase dimensions, the arrangement of the domains is different from ordinary impact resistant plastics.

Miscibility of Poly(butyl acrylate)−Poly(butyl methacrylate) Sequential Interpenetrating Polymer Networks

2001 ◽  
Vol 34 (16) ◽  
pp. 5525-5534 ◽  
Author(s):  
J. M. Meseguer Dueñas ◽  
D. Torres Escuriola ◽  
G. Gallego Ferrer ◽  
M. Monleón Pradas ◽  
J. L. Gómez Ribelles ◽  
...  
Keyword(s):  
Butyl Acrylate ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Butyl Methacrylate
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