Abstract
Studies on the reaction pathways involved in the curing of novolac resins with hexamethylenetetramine (HMTA) have been further extended by a 13C n.m.r. examination of the thermal decomposition of tris(2-hydroxy-3,5-dimethylbenzyl)amine and its reactions with 2,4- and 2,6-xylenol. Both the thermal decomposition and reactions with the xylenols lead to methylene-bridged phenolic structures (for chain extension and crosslinking in curing novolac resins). Other pathways lead to minor amounts of products, and some of which remain in the systems up to 205°C. The results taken in conjunction with our previous studies allow us to draw general conclusions on the overall novolac/HMTA reactions as deduced from the model studies.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
