Properties of new nanocomposite triblock copolymer gels based on expandable graphite

2008 ◽  
Vol 48 (9) ◽  
pp. 1667-1673 ◽  
Author(s):  
Marissa A. Paglicawan ◽  
Jin Kuk Kim
Keyword(s):  
Triblock Copolymer ◽  
Expandable Graphite ◽  
Copolymer Gels

Structural Development and Adhesion of Acrylic ABA Triblock Copolymer Gels

1999 ◽  
Vol 32 (21) ◽  
pp. 7251-7262 ◽  
Author(s):  
Cynthia M. Flanigan ◽  
Alfred J. Crosby ◽  
Kenneth R. Shull
Keyword(s):  
Triblock Copolymer ◽  
Structural Development ◽  
Copolymer Gels ◽  
Aba Triblock Copolymer

Self-Assembly and Stress Relaxation in Acrylic Triblock Copolymer Gels

2007 ◽  
Vol 40 (4) ◽  
pp. 1218-1226 ◽  
Author(s):  
Michelle E. Seitz ◽  
Wesley R. Burghardt ◽  
K. T. Faber ◽  
Kenneth R. Shull
Keyword(s):  
Stress Relaxation ◽  
Self Assembly ◽  
Triblock Copolymer ◽  
Copolymer Gels

“Butterfly”-like patterns of triblock copolymer gels as observed by small-angle neutron scattering

1996 ◽  
Vol 34 (16) ◽  
pp. 2739-2745 ◽  
Author(s):  
N. Mischenko ◽  
K. Reynders ◽  
K. Mortensen ◽  
N. Overberg ◽  
H. Reynaers
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Triblock Copolymer ◽  
Copolymer Gels

Multiscale mechanical characterization of biomimetic physically associating gels

2006 ◽  
Vol 21 (8) ◽  
pp. 2084-2092 ◽  
Author(s):  
Thomas F. Juliano ◽  
Aaron M. Forster ◽  
Peter L. Drzal ◽  
Tusit Weerasooriya ◽  
Paul Moy ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Injury Risk ◽  
Mechanical Response ◽  
Measurement Techniques ◽  
Synthetic Materials ◽  
Copolymer Gels ◽  
Ballistic Gelatin ◽  
Stress States ◽  
Impact Events

The mechanical response of living tissue is important to understanding the injury-risk associated with impact events. Often, ballistic gelatin or synthetic materials are developed to serve as tissue surrogates in mechanical testing. Unfortunately, current materials are not optimal and present several experimental challenges. Bulk measurement techniques, such as compression and shear testing geometries, do not fully represent the stress states and rate of loading experienced in an actual impact event. Indentation testing induces deviatoric stress states as well as strain rates not typically available to bulk measurement equipment. In this work, a ballistic gelatin and two styrene-isoprene triblock copolymer gels are tested and compared using both macroscale and microscale measurements. A methodology is presented to conduct instrumented indentation experiments on materials with a modulus far below 1 MPa. The synthetic triblock copolymer gels were much easier to test than the ballistic gelatin. Compared to ballistic gelatin, both copolymer gels were found to have a greater degree of thermal stability. All of the materials exhibit strain-rate dependence, although the magnitude of dependence was a function of the loading rate and testing method.

Concentration-Dependent Mechanical Behavior of Physically Assembled Triblock Copolymer Gels

2020 ◽  
Vol 2 (12) ◽  
pp. 5388-5397
Author(s):  
Satish Mishra ◽  
Rosa Maria Badani Prado ◽  
Santanu Kundu
Keyword(s):  
Mechanical Behavior ◽  
Triblock Copolymer ◽  
Copolymer Gels

Phase behavior of SEBS triblock copolymer gels

2011 ◽  
Vol 49 (20) ◽  
pp. 1479-1491 ◽  
Author(s):  
Tanya L. Chantawansri ◽  
Andrew J. Duncan ◽  
Jan Ilavsky ◽  
Kristoffer K. Stokes ◽  
Michael C. Berg ◽  
...  
Keyword(s):  
Phase Behavior ◽  
Triblock Copolymer ◽  
Copolymer Gels

Stretching-Induced Correlations in Triblock Copolymer Gels As Observed by Small-Angle Neutron Scattering

1995 ◽  
Vol 28 (25) ◽  
pp. 8699-8701 ◽  
Author(s):  
K. Reynders ◽  
N. Mischenko ◽  
K. Mortensen ◽  
N. Overbergh ◽  
H. Reynaers
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Triblock Copolymer ◽  
Copolymer Gels

Ordering Phenomena in ABA Triblock Copolymer Gels

1997 ◽  
Vol 30 (5) ◽  
pp. 684-689 ◽  
Author(s):  
K. Reynders ◽  
N. Mischenko ◽  
R. Kleppinger ◽  
H. Reynaers ◽  
M. H. J. Koch ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Domain Boundary ◽  
Crystalline Lattice ◽  
Chain Packing ◽  
Network Nodes ◽  
Copolymer Gels ◽  
Two Factors ◽  
Aba Triblock Copolymer ◽  
Equilibrium Morphology ◽  
Degree Of Order

Temperature and concentration dependencies of the degree of order in ABA triblock copolymer gels are discussed. Two factors can influence the ordering phenomena: the conformation of the midblocks (links of the network) and the polydispersity of the endblock domains (nodes of the network). The latter is defined by the scattering density profile (polymer chain packing) at the domain boundary: a sharp boundary corresponds to less polydisperse domains and to increased order in the arrangement of the network nodes. The structure of the network can be described in terms of a highly distorted crystalline lattice with close-packed spheres or with cubic (presumably BCC) equilibrium morphology. The appearance of the latter is never detected in the gels with a stretched conformation of the midblock.

Fracture and large strain behavior of self-assembled triblock copolymer gels

Soft Matter ◽  
2009 ◽  
Vol 5 (2) ◽  
pp. 447-456 ◽  
Author(s):  
Michelle E. Seitz ◽  
David Martina ◽  
Tristan Baumberger ◽  
Venkat R. Krishnan ◽  
Chung-Yuen Hui ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Large Strain ◽  
Strain Behavior ◽  
Copolymer Gels ◽  
Self Assembled
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