研究表明，聚合物分子量降低，水解度升高或者两者同时变化，沉降体积均减小，但是仍有很高的保留率。
The study results show that the subsidence volume has been a decrease along with the molecular weight dropping, the degree of hydrolysis rising or both varying, but it still has high reservation rate.
研究表明，聚合物分子量降低，水解度升高或者两者同时变化，沉降体积均减小，但是仍有很高的保留率。
The study results show that the subsidence volume has been a decrease along with the molecular weight dropping, the degree of hydrolysis rising or both varying, but it still has high reservation rate.
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