研究 开发
.
2013, 44(13):
32-0.
Abstract: A highly symmetric multi-branched compound (new antioxidant) N,N, N ', N '-[ 1,4 phenylenediamine] – propionate [ 1,2,2,6,6 – pentamethyl ] piperidine alcohol ester which has not been reported in the literature , has been synthesized by transesterification using N, N, N 'N'- tetra methyl propionate - 1, 4 -phenylenediamine and 1,2,2,6,6 – pentamethyl-4-ol as starting materials, and tetraisopropyl orthotitanate as catalyst. The structure of the compound was confirmed by 1H-NMR, liquid-mass spectrometry test (LC-MS), infrared spectrum test (FT-IR), and elemental analysis . In order to study the properties of the new antioxidant, the new antioxidant、antioxidant D ( N-phenyl -β- naphthylamine)、light stabilizer GW-622 were added to the natural rubber,and made a kind of different Rubber diaphragms,and the properties of masterbatch thermooxidative, photooxidative were also determined. The results indicated that, the new antioxidant has good properties of masterbatch thermooxidative and photooxidative.