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Effect of Soft Segment

As already mentioned, the soft segment is typically a hydroxy-terminated polyester or polyether, although other hydroxy-terminated materials have also been used and studied, including polyols based on polybutadiene [Pg.187]

Hydroxy-terminated polybutadienes (HTPBD) (11) yield urethane polymers with improved hydrolytic stability and lower moisture vapor [Pg.187]

Effect of Soft-Segment Content on the Properties of Lignin-Based Polyurethanes... [Pg.404]

Wiggins MJ, MacEwan M, Anderson JM, Hiltner A. Effect of soft-segment chemistry on polyurethane hiostability during in vitro fatigue loading. Journal ofBiomedical Materials Research A 2004, 68, 668-683. [Pg.82]

Figure 3. Small-angle x-ray scattering intensity curves demonstrating the effect of soft-segment molecular weight for three polycaprolactone polyurethanes (MDI/BD) of approximately equal hard-segment content. (A) 57% by wt, FCL 2000-178 (S) (B) 53% by wt FCL 830-123 (S) and (C) 61% by wt, FCL 830-134 (S). Figure 3. Small-angle x-ray scattering intensity curves demonstrating the effect of soft-segment molecular weight for three polycaprolactone polyurethanes (MDI/BD) of approximately equal hard-segment content. (A) 57% by wt, FCL 2000-178 (S) (B) 53% by wt FCL 830-123 (S) and (C) 61% by wt, FCL 830-134 (S).
Figure 8. Effect of soft segment content on point of phase separation during polyurethane polymerization as indicated by discontinuity in DSC reaction profile. Dotted line shows theoretical prediction assuming separation at constant number-average sequence length (1.3) of hard segments ("see text). Figure 8. Effect of soft segment content on point of phase separation during polyurethane polymerization as indicated by discontinuity in DSC reaction profile. Dotted line shows theoretical prediction assuming separation at constant number-average sequence length (1.3) of hard segments ("see text).
A. Takahara, A.J. Coury, R.W. Hergenrother, S.L. Cooper, Effect of soft segment chemistry on the biostabihty of segmented polyurethanes. [Pg.142]

Zhu, Y., Hu, J., and Yeung, K. (2009) Effect of soft segment crystallization and hard segment physical crosslink on shape memory function in antibacterial segmented polyurethane ionomers. Acta Biomaterialia, 5, 3346-3357. [Pg.209]

Pattanayak. A. and Jana, S.C. (2005) Thermoplastic polyurethane nanocomposites of reactive silicate clays effects of soft segments on properties. Polymer, 46, 5183. [Pg.387]

Yen, M.-S. Tsai, P.-Y., Effects of Soft Segments on the Surface Properties of Polydimethylsiloxane Waterborne Polyurethane Prepolymer Blends and Treated Nylon Fabrics. J.Appl. Polym. Sci. 2010,115, 3550-3558. [Pg.64]

THE EFFECT OF SOFT-SEGMENT MOLECULAR WEIGHT UPON THE PROPERTIES OF POLYURETHANES PREPARED FROM POLYCAPROLACTONE MDI 1,4 BUTANE DIOL AT A... [Pg.57]

Hu, D., and Liu, H., 1993, Effect of soft segment on degradation kinetics in polyethylene glycol/poly(L-lactide) blockcopol5Tners, Po/yw. Bull 30 669-676. [Pg.195]

Gisselfalt K, Helgee B. Effect of soft segment length and chain extender structure on phase separation and morphology in poly(urethane urea)s. Macromol Mater Eng 2003 288(3) 265-71. [Pg.18]

Chu B, et al. Microphase separation kinetics in segmented polyurethanes effects of soft segment length and structure. Macromolecules 1992 25(21) 5724—9. [Pg.20]

Das S, et al. Structure-property relationships and melt rheology of segmented, nonchain extended polyureas effect of soft segment molecular weight. Polymer 2007 48(1) 290-301. [Pg.21]

Kelley, S. S., Glasser, W. G., and Ward, T. C., 1989, Effect of Soft-Segment Content on the Properties of Lignin-Based Polyurethanes. In Lignin—Properties and Materials (W. [Pg.138]

Chen W-P and Schlick S (1990) Study of phase separation in polyurethanes using paramagnetic labels effect of soft-segment molecular weight and temperature. Polymer 31 308-314. [Pg.431]

Seefried Jr C G, Koleske J V and Critchfield F E (1975) Thermoplastic urethane elastomers. I. Effects of soft-segment variations, J Appl Polym Sci 19 2493-2502. [Pg.565]

See other pages where Effect of Soft Segment is mentioned: [Pg.140]    [Pg.97]    [Pg.393]    [Pg.187]    [Pg.12]    [Pg.13]    [Pg.15]    [Pg.15]    [Pg.15]    [Pg.44]    [Pg.12]    [Pg.13]    [Pg.15]    [Pg.15]   


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