After purification with methanol, the graft copolymer, as characterized by IR and solubility behavior, is completely different from the mixtures of P(ECH-EO-AGE) and P( MMA-St ) .

• 同时也研究了P MAA-St 与P ECH-EO-AGE 共混物的行为。 结果表明,接枝共聚物与共混物的溶解行为是完全不同的。