MECHANISM OF GAS-FORMATION IN CATALYTIC DECOMPOSITION OF POLYPROPYLENE

被引:17
作者
ISHIHARA, Y
NANBU, H
SAIDO, K
IKEMURA, T
TAKESUE, T
KUROKI, T
机构
[1] NIHON UNIV,COLL SCI & TECHNOL,DEPT IND CHEM,CHIYODA KU,TOKYO 101,JAPAN
[2] NIHON UNIV,COLL PHARM,FUNABASHI,CHIBA 274,JAPAN
[3] PHYSICOCHEM MOLEC DESIGN LAB,TOKOROZAWA,SAITAMA 359,JAPAN
关键词
POLYPROPYLENE; CATALYTIC DECOMPOSITION; BACK-BITING;
D O I
10.1016/0016-2361(93)90318-V
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The catalytic decomposition of polypropylene was studied. The production of gas precursors was found essential to decomposition. Attempts were made to elucidate the gas formation mechanism. The most important elementary reaction is the intramolecular rearrangement of chain-end secondary carbonium ions in the liquid fraction to inner tertiary carbon atoms; the C-9 fraction was produced by beta-scission of the rearranged ions. The C4 and C5 fractions were subsequently obtained by the decomposition of the C-9 fraction.
引用
收藏
页码:1115 / 1119
页数:5
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