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Abstract

A two-stage emulsion polymerization procedure was used to produce an elas tomeric interpenetrating network (IPN)-domain polymer/polymer composite from soft polyacrylates (PAs) and rigid polystyrene (PS), whose thermoset sub micron particles contain PS microdomains. The latex particles, the flow units, have a stick, slip, roll flow mechanism through the deformation of the particles and the elongation of their interchangeable physical ties. Neither a Newtonian plateau nor a yield stress was observed at the shear rates and frequencies studied. Two distinct glass transition temperatures (T_gs) were observed and as sociated with the individual PA and PS transitions. Transmission electron mi croscopy (TEM) of a frozen hydrated latex clarified the complex structure of the IPN-domain polymer/polymer particles. The unique mechanical and rheolog ical properties of these materials stem from their IPN-domain structure within the particles as well as from the character of the interparticle interactions.

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References

Berens, A.R. and V.L. Folt , Polym. Eng. Sci. , 9 (1), 27 (1969).

Chuang, H.K. and C.D. Han , J. Appl. Polym. Sci , 29, 2205 (1984).

Dickie, R.A. , M.F. Cheung , and S. Newman , J. Appl. Polym. Sci. , 17, 65 (1973).

Hourston, D.J. and R. Satgurunathan , J. Appl. Polym. Sci. , 29, 2969 (1984).

Lee, D.I. and T. Ishikawa , J. Polym. Sci. Polym. Chem. Ed., 21 , 147 ( 1983).

Lobe, V.M. and J.L. White , Polym. Eng. Sci., 19 (9), 617 (1979).

Manson, J.A. and L.H. Sperling , Polymer Blends and Composites, Plenum Press , NY (1976).

Min, T.I., et al. , J. Polym. Sci. Polym. Chem. Ed. , 21, 2845 (1983).

Munstedt, H. , Polym. Eng. Sci., 21 (5), 273 (1979).

10.

Muroi, S. , H. Hashimoto , and K. Hoshi , J. Polym. Sci. Polym. Chem. Ed. 22, 1365 (1984 ).

11.

Narkis, M. , Y. Talmon , and M. Silverstein , Polymer, 26 (7), 1359 (1985 ).

12.

Neilsen, L.E. , Mechanical Properties of Polymers and Composites , Marcel Dekker, NY (1974).

13.

Silverstein, M.S. and M. Narkis , Polym. Eng. Sci. , 25 (5), 257 (1985).

14.

Sperling, L.H. , et al. , Symposium on Polymer Alloys , Plenum Press, NY, 191 (1983).

15.

Swanson, C.L. , G.F. Fanta , and E.B. Bagley , Polym. Compos. , 5 (1), 52 (1984).

16.

Talmon, Y. , Ultramicroscopy, 14, 305 (1984).

17.

Talmon, Y. , M. Narkis , and M. Silverstein , J. Elec. Micr. Technique, 2 , 589 ( 1985).

18.

Taylor, R.B. and A.V. Tobolsky , J. Appl. Sci. , 8, 1563 (1964).

Polymer/Polymer Composites Consisting of Interpenetrating Network-Domain Latex Particles

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