The mass spectra of ureide-type noncyclic polyethers with 2(3H)-benzoxazolone as end groups were studies.
研
2（3H）-苯并唑酮为端基、具有酰脲结构的非环多醚化合物的质谱。
The mass spectra of ureide-type noncyclic polyethers with 2(3H)-benzoxazolone as end groups were studies.
研2（3H）-苯并唑酮为端基、具有酰脲结构的非环多醚化合物的质谱。
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