用正电子湮没技术研究在聚四氟乙烯辐照接枝过程中的自由体积与正电子湮没寿命谱的关系。
The positron annihilation technique was applied to study the relation between relative free volume and irradiated graft for PTFE.
FTIR谱图分析表明，共聚过程中，有机硅氧烷已经接枝到丙烯酸酯聚合物分子链上，并且改变了共聚树脂的性能。
It has shown, by use of FTIR analysis, that during copolymerization, silicone is grafted onto the acrylic polymer chain, and modified the properties of the copolymer resin.
本文较详细地介绍了表层低交联度聚苯乙烯树脂及接枝聚苯乙烯树脂的制备过程及它们的一些物理性质。
The preparation of thin layer polystyrene resin and grafted polystyrene resin as well as their physical properties have been described in detail.
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