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GRAFT CO-POLYMERIZATION BY SOLVO-THERMAL METHOD

机译:溶剂热法接枝共聚合

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Production of polyolefm graft-copolymers is widely used in altering the physical andchemical properties of polymers. This grafting procedure helps in producing tailor-made polymers with improved performance according to the customer's need. There are different graft-copolymers processing methods such as solution grafting, which takes place in the presence of organic solvents, grafting at high temperature conditions, and radiation grafting, which makes use of the radioactive sources. However, these graft-polymer processing methods have many drawbacks, which include the difficulty in removing the organic solvent completely after processing, which might cause negative environmental and health impact, decreased efficiency of the grafting co-polymerization due to the evaporation of monomers in the polymer at high temperatures and the need for expensive tools in the radiation grafting method.
机译:聚烯烃接枝共聚物的生产被广泛用于改变聚合物的物理和化学性质。该接枝过程有助于根据客户的需求生产具有改进性能的定制聚合物。有多种不同的接枝共聚物加工方法,例如溶液接枝(在有机溶剂存在下进行),高温条件下的接枝以及辐射接枝(利用放射源)。但是,这些接枝聚合物的加工方法有许多缺点,包括难以在加工后完全除去有机溶剂,这可能对环境和健康造成不利影响,由于单体的蒸发导致接枝共聚效率降低。聚合物在高温下以及辐射接枝方法中对昂贵工具的需求。

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