玻璃状聚合物内吸收溶剂浓度变化问题计算

Calculation of Concn Changement of Sorption Solvents in Glassy Polymers

某些固态聚合物置于低重分子溶液中的溶解吸收现象已建有数学模型 .在适当的温度区间 ,聚合物内存在着不断膨胀着的吸收溶剂的胶状区域 .由于胶状区域的变化 ,在胶状区域的溶液扩散将是一个自由边界问题 .

A mathematical model has been founded on interpreting sorption evidence of some solid polymers in low-molecular-weight solvents. In a proper temperature area, there exists rubbery region of swelling sorption solvents within the polymer. According to the changement of the rubbery region, the diffusion of solvents in the rubbery region will be a free-boundary problem.