Figure 2.
(a) 1H NMR spectra (D2O, 300 MHz) of 4-arm PEG-SSPHIS; (b) GPC chromatogram of 4-arm PEG-SSPHIS, 4-arm PEG and SSPHIS oligomer.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.