Patents by Inventor Nianchen ZHOU

Nianchen ZHOU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High-grafting density cyclic comb shaped polymer and preparation method therefor
    Patent number: 11905378
    Abstract: A high-grafting density cyclic comb shaped polymer and its preparation method therefor. The method comprises the following steps: 1) synthesizing linear poly(pentafluorophenyl 4-vinylbenzoate) (l-PPF4VB4.0k); 2) performing photo-induced cyclization on the linear polymer to prepare the cyclic polymer (c-PPF4VB4.0k); 3) performing post modification on the cyclic polymer c-PPF4VB4.0k by using small molecules to prepare a functionalized cyclic polymer (c-P1); 4) then performing polymer post modification on the cyclic polymer (c-P1) by using an efficient click reaction to construct the high-grafting density cyclic comb shaped polymer (c-P1-g-PS); and 5) directly performing polymer post modification on the cyclic polymer c-PPF4VB4.0k by using macromolecules to construct a high-grafting density cyclic comb shaped polymer (c-PPF4VB4.0k-g-PEG), the obtained cyclic comb shaped polymer still remaining the characteristic of a narrow molecular weight distribution.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: February 20, 2024
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Wei Zhang, Shuangshuang Zhang, Jieai Li, Xiulin Zhu, Zhengbiao Zhang, Nianchen Zhou
  • HIGH-GRAFTING DENSITY CYCLIC COMB SHAPED POLYMER AND PREPARATION METHOD THEREFOR
    Publication number: 20210122883
    Abstract: A high-grafting density cyclic comb shaped polymer and its preparation method therefor. The method comprises the following steps: 1) synthesizing linear poly(pentafluorophenyl 4-vinylbenzoate) (l-PPF4VB4.0k); 2) performing photo-induced cyclization on the linear polymer to prepare the cyclic polymer (c-PPF4VB4.0k); 3) performing post modification on the cyclic polymer c-PPF4VB4.0k by using small molecules to prepare a functionalized cyclic polymer (c-P1); 4) then performing polymer post modification on the cyclic polymer (c-P1) by using an efficient click reaction to construct the high-grafting density cyclic comb shaped polymer (c-P1-g-PS); and 5) directly performing polymer post modification on the cyclic polymer c-PPF4VB4.0k by using macromolecules to construct a high-grafting density cyclic comb shaped polymer (c-PPF4VB4.0k-g-PEG), the obtained cyclic comb shaped polymer still remaining the characteristic of a narrow molecular weight distribution.
    Type: Application
    Filed: January 4, 2021
    Publication date: April 29, 2021
    Inventors: Wei ZHANG, Shuangshuang ZHANG, Jieai LI, Xiulin ZHU, Zhengbiao ZHANG, Nianchen ZHOU