rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Studies on "Perfect" Hyperbranched Chains Free in Solution and Confined in a Cylindrical Pore
  name:
    name part: Li, Lianwei.
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: SpringerLink (Online service)
  type of resource: text
  origin info:
    place:
      place term: gw
    date issued: 2014
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: electronic resource
    reformatting quality: access
    form: remote
    extent: XIII, 128 p. 111 illus., 26 illus. in color. online resource.
  abstract: Lianwei Li's Ph.D. thesis solves a long-standing problem in polymer physics: how does a hyperbranched chain pass through a cylindrical pore smaller than its size under an elongational flow field? The question was asked by the Nobel Laureate, the late Professor de Gennes in the 70s but has never been seriously addressed through real experiments. This thesis outlines how Lianwei Li developed a novel polymerization strategy using a seesaw-type macromonomer to prepare a set of "defect-free" hyperbranched chains with different overall molar masses and controllable uniform subchain lengths. The author then unearthed how the critical (minimum) flow rate at which a hyperbranched chain can pass through the pore, is dependent on the overall molar mass and the subchain length. The experimental results give a unified description of polymer chains with different topologies passing through a small cylindrical pore, which enables us to separate chains by their topologies instead of their sizes in ultrafiltration. In addition, this research also reveals how the chain structure of amphiphilic hyperbranched block and graft copolymers affect their solution properties, including the establishments of several classic scaling laws that relate the chain size and the intrinsic viscosity to the overall molar mass and the subchain length, respectively. This work has led to numerous publications in high-impact peer-reviewed journals.
  table of contents: Introduction and Background -- Our Main Goals -- Seesaw-Type Macromonomer Strategy: a Versatile Approach for the Preparation of “Perfect” Hyperbranched Polymers -- Preparation of “Perfect” Hyperbranched Homopolymers and Copolymers by “Click” Chemistry -- Solution Properties of “Perfect” Hyperbranched Homopolymers and Copolymers -- Conclusion -- Experimental Part.
  note: by Lianwei Li.
  subject:
    topic: Chemistry
  subject:
    topic: Polymers
  subject:
    topic: Chemistry
  subject:
    topic: Polymer Sciences
  classification: QD380-388
  classification: 541.2254
  related item:
    title info:
      title: Springer eBooks
  related item:
    title info:
      title: Springer Theses, Recognizing Outstanding Ph.D. Research
  identifier: 9783319060972
  identifier: http://dx.doi.org/10.1007/978-3-319-06097-2
  record info:
    record creation date: 140408
    record change date: 20140408062732.0
    record identifier: 978-3-319-06097-2