Pyrolysis behaviors of poly(acrylonitrile-co-butadiene) with differing microstructures

Homogeneous Hydrogenation Art of Nitrile Butadiene Rubber: A Review

“…Tetramethylammonium hydroxide (TMAH) and trimethylsufonium hydroxide (TMSH) are typically used for preferential cleavage of ester domains. [85][86][87][88][89][90][91][92][93] The utilization of Py-GC/MS to determine the structure of rubbers that are made from copolymer, for example, NBR is more difficult compared to other rubbers such as NR and CR. Because the characteristic of generating Downloaded by [New York University] at 10:43 17 June 2015 Scheme 7.…”

“…91 Choi and Han studied the pyrolysis behaviors of NBR with different levels of bound AN. 86 Different temperatures were practiced to pyrolyze NBRs with different AN contents: the temperatures of 750, 670, 830, and 780 • C were applied on the AN contents of 20.0, 33.4, 40.5, and 41.5 wt%, respectively. According to Choi and Han's report, the characteristic pyrolysis products of NBR involve BD, AN, benzene, cyclohexa-1,4-diene, 4-vinyl-1-cyclohexene, cyclopent-3-ene-1-carbonitrile, cyanobenzene, and cyclohex-3-ene-1-carbonitrile.…”

“…According to Choi and Han's report, the characteristic pyrolysis products of NBR involve BD, AN, benzene, cyclohexa-1,4-diene, 4-vinyl-1-cyclohexene, cyclopent-3-ene-1-carbonitrile, cyanobenzene, and cyclohex-3-ene-1-carbonitrile. 86 Hiltz performed an extensive analysis focused on the pyrolytic degradation products related to areas of NBR with adjoining AN and BD units (Scheme 7). 87 By combining the pyrograms of NBR, Hiltz summarized that the characteristic pyrolysate of NBR comprised of five compounds with molecular weights of 93, 103 (cyanobenzene), 107, 119, and 160, which can be employed to identify the NBR rubbers.…”

Mass Spectrometry of Synthetic Polymers

“…The influence of fullerene C 60 additives on thermal behavior and thermal degradation of aromatic polyesters was investigated by Zuev and Bertini by means of Py-GC/MS revealing different degradation mechanisms at the beginning and at higher temperatures . The same technique was used for aliphatic biodegradable poly(propylene succinate) polyesters, for substituted polyacetylene , and for poly(4-hydroxybutyric acid) , for determining the influence of PF 6 − and BF 4 − dopants on the stability of electrochemically prepared poly(3-methylthiophene) , for monitoring the thermal degradation behavior of PLA blended with PE , and for the determination of the pyrolysis of acrylonitrile−butadiene rubber with different acrylonitrile contents .…”

“…and BF 4 dopants on the stability of electrochemically prepared poly(3-methylthiophene) (149), for monitoring the thermal degradation behavior of PLA blended with PE (150), and for the determination of the pyrolysis of acrylonitrile-butadiene rubber with different acrylonitrile contents (151).…”