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Contact:

John Edwards

(203) 744-5905

Reverse Engineering of Polyurethane Adhesives ¹H and ¹³C NMR 

We have considerable experience in reverse engineering of polyurethane adhesives, polyurethane dispersions, energy cure oligomers.

¹H and ¹³C NMR is used to identify and quantify the various components in urethane products. 

Typical Components:

1) Acids: terephthalic acid, isophthalic acid, orthophthalic acid, adipic acid, caprolactone, succinic acid, dodecanedioic acid, sebacic acid, 

2) Diols: butandiol, hexandiol, neopentyl glycol (NPG), 2,2'-DimorpholinoDiethyl Ether (DMDEE), ethylene glycol (EG), polyethylene glycol (PEG), 

propylene glycol (PG), polypropylene glycol (PPG), diethylene glycol (DEG), tetramethylene glycol

3) Acrylates: ethyl acrylate, 2-ethylhexyl acrylate, methacrylate, acrylic acid, methyl-methacrylate, butylacrylate, isobutyl acrylate, iso-propylacrylate, 

isobornylacrylate (IBOA), hydroxyethylacrylate (HEA),   hydroxyethylmethacrylate (HEMA), Pentaerythritol Triacrylate (PETA), dimethacrylamide (DMA)

4) Diisocyanates: Diphenylmethane diisocyanate (MDI), Isophorone Diisocyanate (IPDI), TDI, methylene dicyclohexylisocyanate (DesW), HDT, hexanediisocyanate (HDI), HDI Biuret, HDI Trimer

For more information on this topic please contact:

John Edwards

Manager, Process and Analytical NMR Services

Process NMR Associates LLC,

87A Sand Pit Rd

Danbury, CT 06810, USA

Tel: (203) 744-5905