1766
Macromolecules 1987,20, 1766-1770
&methylene carbons in PTO (T2G2)and crystalline c-(TO), experience identical numbers and types of y-gauche interactions. (45) Groth, P. Acta Chem. Scand. 1971, 25, 725. (46) Reference 39, Chapter 4.
(47) This is a consequenceqBof the conservation of total s and p character of the sp3 molecular orbitals around >C