Elastomer castor oil

Simultaneous Interpenetrating Networks Based on Castor Oil Elastomers and Polystyrene A Review of an International Program... 

Table 1. Glass Transition Temperature of SIN s Based in Castor Oil Elastomers and Crosslinked Polystyrene (%V...

Figure 4. Stress-strain curves for SIN S containing 40% castor oil elastomer (21). Discontinuous curve adapted from sequential IPN synthesis (1) COPEN (2) COPEUN (3) COPUN (4) 40/60 COPEN/PSN (S) 40/60 COPEUN/PSN (6) 40/60 COPUN/PSN (7) 40/60 COPUN/PSN...

Since the purpose of this paper is to review the synthesis and behavior of SIN s based on castor oil elastomers and cross-linked polystyrene, a summary of the main results and conclusions of this study is given below (Refer to Ref. 22.)... 

The modulus, elongation to break, ultimate strength, and toughness of the straight castor oil elastomers increase with increasing amounts of TDI employed as crosslinker. A similar trend was observed in the elastomeric SIN s (40% elastomer content) in which the elastomer phase was continuous. 

The styrene mixture was prepared by dissolving proportionally 0.4 g of benzoyl peroxide and 1 ml of commercial divinylbenzene solution (55%) in 99 ml of freshly distilled styrene monomer. This was polymerized to form a polystyrene network, PSN. SINs containing 10 and 40% castor oil elastomer were studied. 

COPEUN, and COPUN single networks, and their PSN-reinforced SINs. In each case, the PSN tends to reinforce the castor oil elastomer, in a manner similar to carbon black reinforcing SBR. The modulus, strain to break, and work to break are vastly increased. The pertinent values are summarized in Table 7.4. ... 

Figure 7.14. Stress-strain curves for SINs containing 40% castor oil elastomer. Discontinuous curve adapted from the sequential IPN synthesis. ...

Table 7.5. Tensile Properties of SINs Containing 10% Castor Oil Elastomer at...

N. Devia-Manjarres, Synthesis and Characterization of Simultaneous Interpenetrating Networks Based on Castor Oil Elastomers and Polystyrene, Diss. Abstr. Int. B 39(8), 3972 (1979). Castor oil-polyester/PS SIN. Synthesis, morphology, mechanical behavior. Ph.D thesis. 

N. Devia, J. A. Manson, L. H. Sperling, and A. Conde, Simultaneous Interpenetrating Networks Based on Castor Oil Elastomers and Polystyrene. 2. Synthesis and Systems Characteristics, Macromolecules 12(3), 360 (1979). Synthesis and Processing of castor oil-polyester/PS SINs. Rubber-toughened plastics and reinforced elastomers. 

Sperling, L. H., Devia, R, Manson, J. A., and Conde, A., Simultaneous Interpen-etrating Networks Based on Castor Oil Elastomers and Polystyrene A Review of an International Program, ACS Symposium Series No. 121, American Qtemical Society, Washington, DC (1980), pp. 107-121. 

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