Talk:Carothers equation

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Plagiarism/Copyright Violation[edit]

This article's text is identical to the Carothers Equation entry in the Encyclopedic Dictionary of Polymers Vol. 1, found here: Google Books. The first edition of this dictionary was published in 2007, before this article existed. I think this article has to be rewritten immediately. Gruds (talk) 18:51, 12 September 2014 (UTC)[reply]

But this link goes to the second edition published in 2010 (to see this, Click on About this book), and most of the duplicated text in the article was added in 2009. So can we please have a link to the first edition from 2007, to see if the text was really in the book before it was added to the Wikipedia article? Dirac66 (talk) 02:57, 13 September 2014 (UTC)[reply]

there is no need for a complete rewrite, if the case for plagiarism can be made simple revert back to one of the 2009 versions. V8rik (talk) 10:29, 13 September 2014 (UTC)[reply]

DPI>2 ?[edit]

The article says: -The last equation shows that the maximum value of the PDI is 2, which occurs at a monomer conversion of 100%-

Looks right to me but I got this book saying: "...industrial reaction such side reactions often lead to PDIs as large as 10 or more." Found in "Polymer Chemistry" by Paul C. Hiemenz, Second Edition, page 46.

Why's that? lg Phil --90.136.128.135 (talk) 13:06, 13 July 2009 (UTC)[reply]

Maximum PDI = 2 for linear polymers formed by step-growth polymerization. Branched polymers can have higher PDI, and the side reactions mentioned in your book are probably branching (or cross-linking) reactions. Polymers formed by chain-growth can also have higher PDI. Yes, the conditions of validity of the equation should be better explained in the article. Dirac66 (talk) 18:24, 13 July 2009 (UTC)[reply]