Method of producing hybrid polymer-inorganic materials

Details Method of producing hybrid polymer-inorganic materials Method of producing hybrid polymer-inorganic materials

2004-03-10

2010-10-26

Egwim, Kelechi C (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S200000, C523S202000

Reexamination Certificate

active

07820737

ABSTRACT:
The present invention describes a new approach to producing hybrid composite materials with multiscale morphologies. We doped polymer submicrometer spheres with semiconductor or metal (e.g. CdS or Ag, respectively) nanoparticles and used these doped microspheres as the functional building blocks in production of hybrid periodically structured materials. The preparation of hybrid polymer particles included the following stages: (i) synthesis of monodisperse polymer microspheres, (ii) in-situ synthesis of the inorganic nanoparticles either on the surface, or in the bulk of the polymer beads, and (iii) encapsulation of hybrid microspheres with a hydrophobic shell. We demonstrated that by changing the composition of the polymer beads good control could be achieved over the size of the nanoparticles.

REFERENCES:
patent: 5952131 (1999-09-01), Kumacheva et al.
patent: 01/62830 (2001-02-01), None
Kumacheva et al. [“A New Approach to Hybrid Polymer-Metal and Polymer-Semiconductor Particles” Advanced Materials, vol. 14, No. 23, Dec. 3, 2002, pp. 1756-1759].
Zhang et al.; “A New Approach to Hybrid Polymer-Metal and Polymer-Semiconductor Particles”; Advanced Materials; vol. 14, No. 23, Dec. 3, 2002; pp. 1756-1759.
Kalinina et al., “A Core-Shell Approach to Producing 3D Polymer Nanocomposites”, Macromolecules, American Chemical Society, vol. 32, No. 12, 1999; pp. 4122-4129.
Kumacheva et al.; “Three-Dimensional Arrays in Polymer Nanocomposites”, Advanced Materials, VCH, Feb. 11, 1999: pp. 231-234.

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