Studies on obtaining and hydroxypropyl properties of oxamide (OD) derivatives with contribution of OD and N,N'-bis(2-hydroxypropyl)oxamide(BHPOD) were carried out. As a hydroxyalkylating agent, the propylene carbonate (PC) was used. Hydroxypropylating with OD proceeds with a partial preservation of carbonate groups in the structure of products, and during the reaction, a partial dimerization of hydroxypropoxylene derivatives of OD occurs. The obtained hydroxypropoxy derivatives of OD are distinguished by an increased ther- mal stability. Hydroxypropoxy derivatives of OD are expected to find application as polyol components for the manufacture of thermally stable foamed polyurethane plastics. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 1624 1633, 2011