There is the polymer core-shell nanoparticles of interface zone

There is the polymer core-shell nanoparticles of interface zone

  • CN 101,516,779 B
  • Filed: 07/27/2007
  • Issued: 05/04/2016
  • Est. Priority Date: 07/28/2006
  • Status: Active Grant
First Claim
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1. a method of producing polymer nano granules, it comprises:

  • Comprise and make at least one shell monomer polymerization to form the first polymerization of shell;

    Under described shell exists, by the second polymerization, core and interface zone are connected to instituteState shell, wherein said the second polymerization comprise make at least one be different from described at least oneThe nuclear monomer of shell monomer and at least one crosslinking agent combined polymerization;

    WithMake at least described core and at least one crosslinking agent crosslinked, form thus polymer nanoRice grain;

    Wherein said nuclear monomer comprises alkenyl benzene;

    Wherein said shell monomer comprises conjugated diene;

    Described core and described shell are separated and connected to wherein said interface zone,The volume fraction of wherein said at least one interface zone is 1% to 99%;

    Wherein said the first polymerization and described the second polymerization one of be at least selected from anionPolymerization;

    It is one of following that described method comprises;

    A. partly by side by side adding alkenyl benzene unit and divinylbenzeneDo not produce in core and the taper with gradient glass transition temperature by randomizerBetween shell, there is the polymer nano granules of relatively thick interface zone;

    B. partly by add simultaneously alkenyl benzene unit and divinylbenzene andProduce at core and have between the shell of gradient glass transition temperature by randomizerThere is the polymer nano granules at relatively thick interface;

    C. partly add alkenyl benzene unit and the divinyl of same amount by incrementBase benzene and not with randomizer produce between core and shell, have relatively narrow to basicThe polymer nano granules at upper non-existent interface;

    D. partly add alkenyl benzene unit and the divinyl of same amount by incrementBase benzo uses randomizer production between core and shell, to have relatively narrow interface zonePolymer nano granules;

    E. partly by add the alkenyl benzene list of same amount with different ratio incrementsUnit and divinylbenzene and do not use randomizer to produce between core and shell, to have relativelyThe narrow polymer nano granules at non-existent interface extremely substantially.

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