Dr. Ru Deng and graduate student Chengyuan Wang report on hydrogen-bonded supramolecular miktoarm star polymer containing three distinct helical arms. By installing one barbituric acid (Ba) unit at the center of a diblock helical poly(methacrylamide), it formed a miktoarm star polymer with a helical poly(isocyanide) functionalized with a Hamilton Wedge (HW) moiety in its chain-end through the assembly driven by complementary hydrogen-bonding interactions between the HW and Ba units.