Porous poly composites

Preparations and Properties of Porous Poly(vinyl alcohol)-Poly(vinyl acetate) Composites... 

Zhang, R. and Ma, P.X. (1999) Porous poly(L-lactic acid)/apatite composites created by biomimetic process. Journal of Biomedical Materials Research, 45, 285-293. 

Ma PX, Zhang R, Xiao G, Franceschi R (2001) Engineering new bone tissue in vitro on highly porous poly (alpha-hydroxyl acids)/hydroxylapatite composite scaffolds. J Biomed Mater Res 54 284-293 Macdonald A, Moore BK, Newton CW, Brown CE (1994) Evalrration of an apatite cement as a root end filling material. J Endodontics 20 598-604... 

Ruhe, P. Q., Hedherg-Dirk, E. L., Padron, N. T., Spauwen, P. H., Jansen, J. A. Mikos, A. G. (2006) Porous poly(DL-lactic-co-glycolic acid)/calcimn phosphate cement composite for reconstruction of bone defects. Tissue Eng, 12, 789-800. 

Mizutani, Y., Hattori, M., Okuyama, M. et al. (2005) Preparation of porous poly(L-lactic acid) composite containing hydroxyapatite whiskers. Chemistry Letters, 34,1110-1 111. 

Maquet, V., Boccaccini, A. R., Pravata, L., Notingher, I. and Jerdme, R., Porous poly(a-hydroxy acids)/Bioglass composite scaffolds for bone tissue engineering. I Preparation and in vitro characterisation. Biomaterials 25, 4185-4194 (2004). 

Hedberg, E.L., Kroese-Deutman, H.C., Shih, C.K., Crowther, R.S., Carney, D.H., Mikos, A.G., et al., 2005b. In vivo degradation of porous poly(propylene fumarate)/poly(DL-lactic-co-glycolic acid) composite scaffolds. Biomaterials 26 (22), 4616—4623. 

Zhang, R.Y., Ma, P.X., 2000. Degradation behavior of porous poly(alpha-hydroxy acids)/ hydroxyapatite composite scaffolds. Abstracts of Papers of the American Chemical Society 220, U251. 

Very little data exists on the fracture toughness of porous silicon. However two studies suggest that optimized nanocomposites (see hand book chapter Polymer-Porous Silicon Composites ) could exhibit much higher toughness than nonporous silicon. An experimental study reported that the inclusion of poly-phenylene vinylene polymers into oxidized mesoporous silicon could yield toughness values more than five times higher than that of their bulk silicon control (Ni et al 2005). The maximum value reported for a polymer-impregnated mesoporous film on a wafer was 4.2 MPa. 

Polybenzimidazole/Porous Poly (tetrafluoro ethylene) Composite Membranes... 

Nguyen, T.P., Le Rendu, P., Lakehal, M.. Joubert, P., and Destruel, P. (2000) Poly(p-phen ene vinylene)/porous silicon composites. Materials Science Technology B, 69-70,177-181. 

Zhang, K, Wang, Y, Hdlmyer, M.A., and Francis, L.F. (2004) Processing and properties of porous poly(L-lactide)/ bioactive glass composites. Biomaterials,... 

Figure 34 Effect of surface modification on solid filler properties bioactivity, (a) Schematic of surface reaction and subsequent nucleation of apatite on bioactive fiUer surface. Images from SEM of porous poly(L-lactide) composites made with (b) unmodified BG and (c) silane-treated BG, after 7 days in SBF, showing effect on nucleation of apatite.

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