NEW NON-IONIC SURFACE ACTIVE AGENTS 269 t 15 sec 5 2 Figure 5. IRFT-CMR spectrum of TEG (Z)-9,10-methyleneoctadecanoate (CDCL 3, 0.5 M, 30 ø C). treatment (6) that considers the molecular motion in terms of the rate [r(i, j)]-•, defined as the difference in the rates which characterizes the motions of carbons i and j in a given molecule, i.e. [•-(i, j)]-•--(i7'eff)--I -- (J7'eff) --1. (5) Substitution of Eq. 4 into Eq. 5 yields [T(i, j)]-I = (i7.g)-I __ (j7.g)-l, (6) since the overall correlation times (r,) of all carbons in a given molecule are equal (by Table IX T•, NT• and Calculated re• Values of Compound (3) a Carbon No. T, (s) NT, (s) •e• (ps) 18 4.5 13.5 3.5 b 17 3.9 7.8 6.0 16 3.0 6.0 7.8 15 1.5 3.0 15.5 14 1.5 3.0 15.5 13 1.6 3.2 14.6 12 1.6 3.2 14.6 11 1.1 2.2 21.2 10 1.4 1.4 33.3 19 0.84 1.7 27.4 9 1.5 1.5 31.1 8 0.98 2.0 23.3 Carbon No. • (s) N• (s) • (ps) 7 O.99 2.0 23.3 6 0.95 1.9 24.5 5 1.1 2.2 21.2 4 1.1 2.2 21.2 3 1.1 2.2 21.2 2 1.1 2.2 21.2 1' 1.0 2.0 23.3 2' 1.1 2.2 21.2 3' 1.7 3.4 13.7 4' 1.7 3.4 13.7 5' 2.6 5.2 9.0 6' 2.4 4.8 9.7 'CDCI3, 0.5M, at 30øC. bBecause of the spin-rotation contribution, only an upper limit can be given.

270 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Table X Correlation Times r(18, j) Corresponding Differences in Rates of Internal Motion Compound r (18, j) (ps) Carbon No. (j) No. 17 16 14 11 10 19 9 8 7 1 7.1 5.5 3.9 4.0 3.7 3.7 4.0 4.0 2 7.5 6.1 4.1 4.0 3.9 3.8 4.0 4.1 3 8.2 6.2 4.4 4.1 3.8 3.9 3.9 4.1 4.1 4 9.3 6.9 5.2 4.6 4.6 4.6 4.6 4.4 No. 6 4 2 1' 2' 3' 4' 5' 6' I 4.0 4.2 3.7 3.7 3.6 4.0 4.1 5.1 4.7 2 4.0 4.1 3.9 3.8 4.0 4.2 4.3 5.0 4.8 3 4.0 4.1 4.1 4.0 4.1 4.6 4.6 5.6 5.4 4 4.4 4.4 4.4 4.3 4.2 4.7 4.9 5.5 5.1 0.95 1.1 1.7 1.7 3.2 2.8 C17HaaCO2--CH2--CH2--O--CH2--CH2--O--CH2--CH20H (TEG oleate) 0.40 0.38 0.32 0.33 0.24 C18H3sO--CH2--CH--CH2--NH--CH2--CH20H I OH (OL--MEA) 0.21 0.25 0.30 0.43 0.20 ? H2--CH20H C18HasO--CH2--CH--CH2--N I •CH2__CH20 H OH (OL--DEA) 0.07 CH20H 0.12 0.17 0.07 [ •.0.36 C•Ha•O--CH2--CH--CH2--NH--•C--CH a I /I OH 0,89 CH20 H (OL--AMPD) 0.03 CH2OH 0.05 0.06 0.03 [ C• •Ha•O-- CH2-- ?H -- CH2--N H7?--CH20H OH 0.35 CH20 H (OL--TMAM) Figure 6. T• values (sec) of some surfactants in reversed miceliar state (C6D6, 0.5 M, 36øC).