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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 15, Number 3
JKCSEZ 15(3)
June 20, 1971 

Mechanical Degradation of Polymers in Dilute Solutions. The Influence of the Temperature on the Scission

희박용액에서의 polymer의 기계적절단. 절단에 미치는 온도의 영향
Yeongmoo Won, Takashi Fukutomi, Toshio Kakurai, Tatsuya Noguchi

원영무, 복부 왕, 가창정 민부, 야구 달미
The mechanical degradation of poly (α-methyl styrene) in several mixed solvents (toluene-n-butyl alcohol, toluene-sec-butyl alcohol, toluene-kerosene, toluene-methyl ethyl ketone), from 1℃ to 45℃, was studied using the capillary flow method. The velocity constant of scission reaction (k) and the limited degree of polymerization (g) were compared at the same value of [η] at each temperatures. As results, mechanical degradation of polymer in dilute mixed solutions is affected by composition of solvents around the polymer chains.
109 - 116
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