Reference

Cryogenic compressive properties of basic epoxy resin systems

Cryogenic compressive properties of basic epoxy resin systems. Markley, F. W.; Hoffman, J. A. 26444-72-4 and 112-24-3 are also occured in this study.; Muniz, D. P. (Fermi Natl. Accel. Lab., Batavia, IL, USA). Adv. Cryog. Eng., 32, 119-26 (English) 1986. CODEN: ACYEAC. ISSN: 0065-2482. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) Epoxy systems ranked in order of decreasing modulus at 77 K (according to crosslinking catalyst or agent) were triethylenetetramine [112-24-3] > aliph. and arom. amines > tris(dimethylaminomethyl)phenol [26444-72-4] > benzyldimethylamine (I) [103-83-3] > most anhydrides > selected thermoplastics (PTFE, polyimides, and ultrahigh-mol.-wt. polyethylene). Rankings in order of increasing elongation at 77 K were aliph. amines < all others < I < selected thermoplastics. .

Synthesis and catalytic activity of quaternary ammonium base derivatives in the cyclotrimerization of isocyanates

Synthesis and catalytic activity of quaternary ammonium base derivatives in the cyclotrimerization of isocyanates. Tsarfin, M. Ya.; Zhitinkina, A. K.; Zharkov, V. V.; Shibanova, N. A. (USSR). Plast. Massy, (2), 12-14 (Russian) 1987. CODEN: PLMSAI. 103-71-9 and 98-94-2 are cas registry numbers of chemicals which are used as reagents here. ISSN: 0554-2901. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) In using quaternary ammonium alcoholates (QAA) and carboxylates prepd. from reaction of a tertiary amine, propylene oxide [75-56-9], and an alc. or acid as catalysts for the cyclotrimerization of PhNCO [103-71-9] (model reaction for prepn. of polyisocyanurate-polyurethanes), the activity of the catalysts depended on their chem. structure. QAA with linear anions were more active than those with branched anions from secondary or tertiary alcs., and QAA from methyldiazabicyclooctane were more active than those from PhCH2NMe2 [103-83-3] or dimethylcyclohexylamine [98-94-2]. .