CROSS-LINKING POLY(ETHYLENE OXIDE) AND POLY[OXYMETHYLENE-OLIGO(OXYETHYLENE)] WITH ULTRAVIOLET-RADIATION

被引:32
作者
SLOOP, SE
LERNER, MM
STEPHENS, TS
TIPTON, AL
PAULL, DG
STENGERSMITH, JD
机构
[1] OREGON STATE UNIV,CTR ADV MAT RES,CORVALLIS,OR 97331
[2] USN,CTR AIR WARFARE,DIV WEAPONS,DEPT RES,DIV CHEM,POLYMER SCI BRANCH,CHINA LAKE,CA 93555
关键词
D O I
10.1002/app.1994.070531202
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Poly (ethylene oxide) (PEO) and poly [oxymethylene-oligo (oxyethylene)] (PEM) disks are cross-linked by exposure to 254 nm radiation. The rate of formation of cross-links is greatly enhanced by the presence of benzophenone, and an average cross-link density of up to 6 mol % of ethoxy units can be obtained after several hours of irradiation. The highly cross-linked polymers are insoluble in water or organic solvents and show improved physical properties for handling and the formation of free-standing films. Scanning calorimetry and polymer swelling are employed to characterize the polymers, and impedance measurements are reported for sodium salt complexes prepared from the cross-linked polymers. Dynamic modulus measurements show that, upon irradiation, PEO and PEM become cross-linked, elastomeric solids. (C) 1994 John Wiley and Sons, Inc.
引用
收藏
页码:1563 / 1572
页数:10
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