摘要
研究了含规整聚氧乙烯(PEO)支链和聚丙烯酸乙酯(PEA)主链的共聚物(PEA-g-PEO)的结晶性、乳化性、稀溶液粘度行为及其碱金属络合物的导电性。结果表明,由于PEA的存在,接枝共聚物的PEO球晶变小,PEA的玻璃化转变温度(T_g)上升,说明PEO与PEA有部分相容性。接枝物的乳化能力随PEO支链的分子量增加而减小。接枝物与LiClO_4的络合物,当PEO的氧原子与锂离子数目之比(O/Li)为20时室温电导率可达3.7×10^(-5)S·cm^(-1)并与PEO结晶度(X_c)密切相关。
The crystalline property, emulsifying property and dilute solution viscosity of ethylacrylate copolymers with uniform polyoxyethylene grafts. as well as the ionic conductivity of their complexes with alkali metal salts were studied. The results showed that in the copolymer the spherulites of polyoxyethy lene diminish and the glass transition temperature ot polyethyl acrylate increases due to partial compatibility ot the two com ponents. The emulsifying ability of the copolymers decreases with increasing molecular weight of the polyoxyethylene grafts. Addition of hydrochloric acid to the emulsion changes the O/W type into W/O type. The room temperature conductivity of the LiClO, complex of the copolymer reaches 3.7×10^(-5)/cm,
出处
《石油化工》
CAS
CSCD
北大核心
1992年第5期294-299,共6页
Petrochemical Technology
