g r 1 r 2 r 3 r 4 is independently chosen from among hydrogen or is a monovalent hydrocarbyl group having from one to about four carbon atoms the various cr 1 r 2 and r 3 c u2550 cr 4 need not be consecutive or in conjugation but may be connected to each other in any order unsaturated fatty acids useful in the compositions and methods herein include for example those listed in the tables herein meth acrylate esters are herein defined as materials having the general structure rch 2 u2550 chc o o nr u2032 wherein n is an integer larger than 1 each r is independently chosen from hydrogen or a ch 3 group and r u2032 is chosen from among hydrocarbyl groups having from two to about 20 carbon atoms each except that the number of carbon atoms in each r u2032 must equal or exceed n meth acrylate esters useful in the compositions and methods herein include for example those listed in the tables herein inorganic salts of peracids or peroxy acids are herein defined as salts of acids containing the structure o u2014 o u2212 in which the cation has a positive electrical charge on an atom other than hydrogen or carbon inorganic salts of peracids useful in the compositions and methods herein include for example those listed in the tables herein in some aspects of the invention the inorganic salts of peracids are used in catalytic amounts e g less than about 0 5 weight percent less than about 0 25 weight percent less than about 0 1 weight percent based on total weight of the composition organic hydroperoxides are defined as an organic compound containing the structure c u2014 o u2014 or wherein.