[COMMUNICATION No. 77 FROM THE EXPERIMENTAL STATION OF EI DU PONT DE ... STUDIES OF POLYMERIZATION AND RING FORMATION. XIV. NEMOURS & Co.] ... A LINEAR SUPERPOLYANHYDRIDE AND A CYCLIC DIMERIC ANHYDRIDE FROM SEBACIC ACID BY JULIAN W. HILL AND WALLACE H. CAROTHERS RECEIVED NOVEMBER 12, 1931 PUBLISHED APRIL 6, 1932 ... In a previous paper' it has been shown that adipic anhydride as ordinarily prepared is a linear polymer ...