Synthesis, order-to-disorder transition, microphase morphology and mechanical properties of BAB triblock copolymer elastomers with hard middle block and soft outer blocks

2018 ◽  
Vol 9 (22) ◽  
pp. 3067-3079 ◽  
Author(s):  
Wentao Wang ◽  
Xuehui Wang ◽  
Feng Jiang ◽  
Zhigang Wang

A series of triblock copolymer elastomers with a soft–hard–soft block sequence was synthesized for studies on their ODT, microphase morphologies and mechanical properties.

Polymer ◽  
1988 ◽  
Vol 29 (2) ◽  
pp. 195-206 ◽  
Author(s):  
Stephen J. Krause ◽  
Tim B. Haddock ◽  
Gary E. Price ◽  
W. Wade Adams

2013 ◽  
Vol 28 ◽  
pp. 42-47 ◽  
Author(s):  
Rajesh Pandit ◽  
Boulos Youssef ◽  
Jean Marc Saiter ◽  
Rameshwar Adhikari

An architecturally asymmetric polystyrene-block-polybutadiene-block-polystyrene (SBS) triblock copolymer possessing lamellar morphology was subjected to different degrees of epoxidation with performic acid generated in situ by the reaction between hydrogen peroxide and formic acid. The effect of the chemical modification on morphology and mechanical behaviour of the block copolymer was investigated by means of different techniques such as electron microscopy, Fourier transform Infrared (FTIR) spectroscopy, tensile testing and differential scanning calorimetry (DSC). It was found that the microphase separation behaviour and hence the mechanical properties of the materials can be drastically altered via epoxidation of the diene block of the styrene/diene triblock copolymers. DOI: http://dx.doi.org/10.3126/jncs.v28i0.8057 Journal of Nepal Chemical Society Vol.28, 2011 Page 42-47 Uploaded date: May 7, 2013


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