skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 1

Search for: All records

Creators/Authors contains: "Fang, Fan"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; ; ; ; ; ; ; (, Polymer Chemistry)
    Synthesizing polystyrene-block-poly(vinyl alcohol) (PS-b-PVA) via controlled radical polymerization of vinyl acetate, the traditional precursor to polyvinyl alcohol (PVA), is challenging due to the reactivity of the unconjugated α-acetoxy radical. We report the synthesis and characterization of PS-b-PVA block copolymers (BCPs) with tailorable PVA block lengths via RAFT polymerization of an alternative precursor, an aromatic organoborane comonomer BN 2-vinylnapthalene (BN2VN). RAFT homopolymerization of BN2VN (RB) using 2-cyano-2-propyl dodecyl trithiocarbonate (CPDT) is described. Solid-state NMR, ATR-IR, SEC and thermogravimetric analysis reveal significant differences between PS-b-PVA and RS-b-RB. The fate of the trithiocarbonate end-group during oxidative conversion of the C–B side chain to a C–OH side chain was studied; while a hydrated aldehyde (e.g., gem-diol) was hypothesized, conclusive evidence was not found. 
    more » « less
    Full Text Available