One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 438
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Fill-in-the-blank: During the suspension polymerization of PVC, iron ions present in the monomer prolong the polymerization induction period; the reaction rate ( ), the quality of the product ( ) deteriorates, and the dielectric properties of the product are also reduced. Answer: Slow down, thermal stability
During the suspension polymerization of PVC, iron ions present in the monomer prolong the polymerization induction period, slow down the reaction rate, degrade the thermal stability of the product, and also reduce its dielectric properties.
During the suspension polymerization of PVC, iron ions present in the monomer prolong the polymerization induction period, slow down the reaction rate, degrade the thermal stability of the product, and also reduce its dielectric properties.
During the suspension polymerization of PVC, iron ions present in the monomer prolong the polymerization induction period, increase the reaction rate, degrade the (thermal stability) of the product, and also reduce its dielectric properties.
Iron increases the polymerization induction period, reduces the reaction rate, deteriorates the thermal stability of the product, and also lowers the dielectric properties of the product.