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Acid value

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5

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Time ( hr )

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0.26

0.34

0.42

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0.58

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20

Acid value

15

10

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22

20

18

Acid value

16

14

12

10

8

6

4 0.2

0.23

0.26

0.29

0.32

0.35

0.38

0.41

0.44

0.47

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PTSA %

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/$

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V >2 &Zzq;

\

y5( 6 7 6

6*

) Martin.j.Schick, Nonionic Surfactants, Marcel Dekker,

4

( * 1 $ /$0

.

)constantin V.Uglea.Oligomer Thechnology & Application,Marcel Dekker,

.

4$ /y ; $ 3

D4 ;$(T

&

) R. L. Birkmeier and J. I. Brandner, J. Agr. Food Chem., ( ). ) A. N. Wrigley F. D, Smith, and A. J. Stirton, J. Am. Oil Chemists Soc., , ( ). ) A. N. Wrigley, F. D. Smith, and A. J. Stirton, J. Am. Oil Chemists Soc., , ( ). ) CA . , ,( ). ) E. P. Werrerau, V.L. Olsanski, C. F. Smullin, and J. D. Brandner, J. Am. Oil Chemists Soc., , ) C. Scholler and M. Wittwer (to I.G. Farbenindustrie A. G), German , ( ). ) A. T. Ballun, J. N. Schumacher, G. E. Kapella, and J. V. Karabinos, J. Am. Oil Chemists Soc., ) Ciba Ltd., Swiss ( ). ) R. A. Wilson (to Monsanto Co.), U.S. , ( ). ) J. D. Malkemus and J. I. Swan, J. Am. Oil Chemists Soc., , ( ). ) F. A. Strauss (to E. F. Drew Co.), U.S. , ( ). ) T. F. Bradley, Ind. Eng. Chem., , ( ). ) W. H. Kirkpatrick, V. L. Seale, A. Walker, and J. B. Love (to Visco Products Co.), U. S. , ) C. Schoeller and M. Wittwer (to I.G. Farbenindustrie A. G.) , U.S. ( ). ) E. W. Eckey (to Procter & Gamble Co.), U.S. , , ( ). ) R. Calvert (to Schaack Bros. Chemical Works), U.S. , ( ). ) R. H. Kienle and G. P. Whitcomb (to American Cyanamid Co.), U.S. , ( ). ) H. Bennett, U. S. , ( ). ) G. T. Pringle and J. H. K. Rixon (to Imperial Chemical Industries Ltd.), British ( ). ) S. Sussman, Ind. End. Chem., , ( ). ) M. J. Astle, B. Schaeffer, and C. O. Obenland, J. Am. Chem. Soc., , ( ). ) H.A.Goldsmith,Chem Rev. ( ). ) W. Schlutter, French , , ( ). ) I. G. Farbenindustrie A. G., German ( ).

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The Study of production Methods for Polyethylene Glycol (PEG) Esters & producing PEG-Distearate Saeed Iranpour ,Reza Saghafi,Masoud Kambarani Farayand Chemical Research Group,ACECR,Tehran University,Faculty of Eng.

Abstract:

Iranpour

@yahoo.com

Polyethylene Glycol (PEG) Esters are non-toxic and non-irriting nonionic emulsifiers. They are prepared by the esterification of fatty acids with polyethylene glycols. The low molecular weight ranging PEG Esters are oil-soluble to work in nonaqueous systems. The high molecular esters are water-soluble can be used in aqueous systems. Polyethylene Glycol Esters are used as emulsifiers and in formulating emulsifer blends, thickener, resin plasticizer, emollient, opacifier, spreading agent, wetting and dispersing agent, and viscosity control agents. They also have application in the metalworking, pulp, paper, textile and as defoamers for latex paints In the present study, we review production of poly(ethylene glycol) ester by several method & application of this material.Then we explain our experimental work on production of poly(ethylene glycol) distearate by catalysed esterification of PEG & stearic acid with discussion experimental results.