Soft segment effect mechanical properties, compositional

Z. Ma, Y. Hong, D. Nelson, J. Pichamuthu, C. Leeson, W. Wagna-, Biodegradable polyurethane ureas with variable polyesto" or polycarbonate soft segments effects of crystallinity, molecular weight, and composition on mechanical properties. Biomacromolecules 12 (9) (2011) 3265-3274. 

Puskas J.E., Antony P., ElFray M., and Altstadt V. The effect of hard and soft segment composition and molecular architecture on the morphology and mechanical properties of polystyrene-polyisobutylene thermoplastic elastomeric block copolymers, Eur. Polym. J., 39, 2041, 2003. 

Antony, P., Puskas, J.E., Ott, H., Altstadt, V., Kovar, M., and Norton, P.R. Effect of Hard and Soft Segment Composition on the Morphology and Mechanical Properties of Polystyrene-Polyisobutylene Thermoplastic Elastomeric Block Copolymers. Proceedings of the Polymer Processing Society Meeting, May 21-24, Montreal, Canada, 2001. 

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