Syntheses of copolymers of chloroprene with ethylmethacrylate and glycidylmethacrylates
作者:
Choon Keon Park,
Chang Sik Ha,
Jin Kook Lee,
Won Jei Cho,
期刊:
Journal of Applied Polymer Science
(WILEY Available online 1994)
卷期:
Volume 53,
issue 7
页码: 967-972
ISSN:0021-8995
年代: 1994
DOI:10.1002/app.1994.070530711
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractChloroprene (2‐chloro‐1,3‐butadiene; CP) was prepared by dehydrochlorination of 3,4‐dichloro‐1‐butene (DCB) in aquous solution of sodium hydroxide in the presence of tetrahydrofurfuryl alcohol (THFA) at 60°C. The copolymers of CP with ethylmethacrylate (EMA) and glycidylmethacrylate (GMA) were prepared by radical solution polymerization in benzene. The copolymers, poly(CP‐co‐EMA) and poly(CP‐co‐GMA), were characterized by FT‐IR and1H‐NMR spectrophotometers and differential scanning carolimetry (DSC). It was observed that the copolymers were amorphous and had glass transition temperatures of about −34.5 and −16.4°C, respectively. The monomer reactivity ratios were given asr1(CP) = 2.14 andr2(EMA) = 0.18 in the copolymerization of CP and EMA, and asr1(CP) = 4.02 andr2(GMA) = 0.12 in copolymerization of CP and GMA, respectively. For comparison, the graft copolymers of EMA or GMA onto CR(poly(CR‐g‐EMA) and poly(CR‐g‐GMA)) were also
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