Morphology and micromechanical deformation behavior of styrene-butadiene block copolymers. IV. Structure-property correlation in binary block copolymer blends

2004 ◽  
Vol 92 (2) ◽  
pp. 1219-1230 ◽  
Author(s):  
R. Adhikari ◽  
G. H. Michler ◽  
S. Henning ◽  
R. Godehardt ◽  
T. A. Huy ◽  
...  
2014 ◽  
Vol 41 (10) ◽  
pp. 45-50
Author(s):  
A.A. Alekseev ◽  
A.V. Lobanov ◽  
V.S. Osipchik ◽  
V.S. Glukhovskoi ◽  
V.M. Aristov ◽  
...  

The structure and properties of block copolymers (BCPs) of styrene and butadiene of grade StiroTEP-70 (styrene:butadiene = 70:30, Mw/Mn = 1.43–1.45) are discussed. Analysis of IR spectra enables the BCP to be treated as polystyrene-stat-copoly(butadiene/styrene/1,2-butadiene)-polystyrene. It is suggested that the absorption band at 542 cm-1 be considered as characteristic when identifying polymers with extensive polystyrene phases. At temperatures of 190–230°C, the BCP is partially crosslinked, and at 260°C it breaks down. The BCP is processed well at temperatures up to 200°C.


1988 ◽  
Vol 61 (5) ◽  
pp. 747-759 ◽  
Author(s):  
M. M. Sain ◽  
I. Hudec ◽  
J. Beniska ◽  
P. Rosner

Abstract The incorporation of a phase modifier, as is well known in the case of elasto-plastic blends, leads to an improvement of mechanical properties and brittleness character for PRP-EVA blends. Similarly, the influence of a cocuring agent and a phase modifier on NR-PRP blends also improved the mechanical properties. Although the modification of the PRP-EVA blend has very little influence on glass transition temperatures, the NR-PRP blends show a measurable shift in their glass-transition temperatures. It is demonstrated that strong interaction occurs between the elastic and plastic components of the blends. Further, it has been shown that this interaction is responsible for improved properties of the blends over that of the pure polymer components.


2003 ◽  
Vol 23 (3) ◽  
Author(s):  
R. Adhikari ◽  
G.H. Michler ◽  
M.E. Cagiao ◽  
F.J. Baltá-Calleja

2005 ◽  
Vol 16 (2-3) ◽  
pp. 175-182 ◽  
Author(s):  
R. Adhikari ◽  
M. Buschnakowski ◽  
W. Lebek ◽  
R. Godehardt ◽  
G. H. Michler ◽  
...  

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