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MBOCA4,4'-Methylenebis (2-Chloroaniline)
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3 ml, which is 1% of total polymer weight considering 100 g of polyester-block-polyether [alpha], [omega]-diol and 130 g of 4,4'-Methylenebis (phenyl isocyanate)) in a disposable cup and allowed to degas for 4 min, 130 g of 4,4'-Methylenebis (phenyl isocyanate) was added to the mixture [30] and mechanically stirred using a cowless dissolver at 2500 rpm for 1 min and made to stand still.
The reagents used in this study are as follows: 4-4'-oxydianiline (ODA; 97% purity), 4,4'-methylenebis (phenyl isocyanate) (MDI; 98% purity), N-methyl pyrolidinone (99% purity), and iodomethane were purchased from Sigma--Aldrich Company.
Epoxy resin/poly(ethylene oxide) blends were recognized to be miscible when cured with 1,3,5-tridroxybenzene (THB) [2], 4,4'-diaminodiphe-nylmethane (DDM) [8], 4,4'-methylenebis (3-chloro-2,6-diethylaniline) (MCDEA) [9], and phthalate anhydride (PA) [10].