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From: Huang@wuchem.wustl.edu
Date: Thu, 21 Nov 1996 16:39:19 -0600
Subject: Polymer with mass diffrence of 44
Organization: wuchem

Hello.  I have a question here if someone can help me.  Besides PEG, what 
other scources can give a polymer-like patten with mass diffrence of 44 
amu.   Thank you.


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From: chrisjcr@aol.com
Date: 23 Nov 1996 19:21:36 GMT
Subject: Re: Polymer with mass diffrence of 44
Organization: America Online, Inc. (1-800-827-6364) (1.13)



This type of series can also be seen in other polyethoxylated
compounds/mixtures such as polysorbate 80 (a.k.a. Tween 80) and
polyethoxylated fatty acid esters. 

Chris Richardson
Chris.Richardson@corp.wrgrace.com
http://members.aol.com/chrisjcr



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From: M.R.Clench@shu.ac.uk (Malcolm Clench)
Date: 29 Nov 1996 14:06:34 GMT
Subject: Re: Polymer with mass diffrence of 44
Organization: Sheffield Hallam University


Alkyphenol ethoxylate type surfactants i.e. octyl and nonyl phenol
ethoxylates give mass spectra very similar to PEG since the repeating unit
is also an ethoxylate group in these cases.