Kei roto i ngā ngota polypropylene ngā rōpū methyl, ka taea te wehewehe ki te polypropylene isotactic, te polypropylene atactic me te polypropylene syndiotactic i runga i te whakaritenga o ngā rōpū methyl. Ina whakaritea ngā rōpū methyl ki te taha kotahi o te mekameka matua, ka kiia ko te polypropylene isotactic; ki te tohatoha matapōkeretia ngā rōpū methyl ki ngā taha e rua o te mekameka matua, ka kiia ko te polypropylene atactic; ina whakaritea ngā rōpū methyl ki ngā taha e rua o te mekameka matua, ka kiia ko te polypropylene syndiotactic. polypropylene. I roto i te hanga whānui o te kapia polypropylene, ko te ihirangi o te hanganga isotactic (e kiia ana ko te isotacticity) he tata ki te 95%, ā, ko te toenga he polypropylene atactic, he polypropylene syndiotactic rānei. Ko te kapia polypropylene e hangaia ana i Haina i tēnei wā ka whakarōpūtia i runga i te taupū rewa me ngā tāpiringa i tāpirihia.
Ko te polypropylene atactic he hua taha o te hanga polypropylene isotactic. Ka hangaia te polypropylene atactic i roto i te hanga polypropylene isotactic, ā, ka wehea te polypropylene isotactic mai i te polypropylene atactic mā te tikanga wehewehe.
He rauemi kirihou tino ngāwari te polypropylene atactic, he kaha kume pai. Ka taea hoki te whakamomona pērā i te rapa ethylene-propylene.
Te wā tuku: 28-Pepuere-2023