"Precise Control of Molecular Weight and Chain Shape Control in Carbon Dioxide/Epoxide Alternating Copolymerization and Preparation of Low Molecular Weight Poly(alkylene Carbonate) Thereby"

  • US 20130289297A1
  • Filed: 06/26/2013
  • Published: 10/31/2013
  • Est. Priority Date: 04/06/2010
  • Status: Active Grant
First Claim
Patent Images

1. A poly(alkylene carbonate) represented by Formula 10 below:


  • J[L-{CR81R82

    CR83R84

    OC(O)O}d

    CR81R82

    CR83R84

    OH]c



    [Formula 10]wherein L is —

    O—

    or —

    CO2

    ;

    c is an integer from 2 to 10, and L is identical or different;

    J is a C1-C60 hydrocarbyl c-valent radical with or without an ether group, an ester group or an amine group;

    R81 to R84 are each independently hydrogen;

    (C1-C10)alkyl substituted or unsubstituted with halogen or (C1-C20)alkoxy;

    or (C6-C12)aryl substituted or unsubstituted with halogen or (C1-C20)alkoxy, R81 to R84 being able to be linked with each other to form a ring; and

    a value obtained by multiplying d by c is a natural number of 1000 or less.

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