Pehea ka hopena o ka Phenol & Acetone Condensation no ka hana ʻana o BPA?

Hoʻopilikia ʻia ka Phenol a me ka acetone i kahi hopena condensation ma lalo o ke catalysis o kahi medium acidic e hana ai i ka Bisphenol A BPA. ʻAʻole paʻakikī ka hopena nui, a he ʻoluʻolu iki nā kūlana o ka hopena. Hiki ke holo mālie ma ke kaomi maʻamau a me 60 - 90 °C. ʻAʻole lōʻihi ke kaʻina hana o ka BPA, ʻo ia hoʻi nā ʻāpana ʻehā: ka hopena condensation, ka crystallization adduct, ka wehe ʻana a me ka hoʻomaʻemaʻe ʻana i ka phenol, a me ka hoʻōla ʻana o ka wai momona makuahine. Eia nō naʻe, he kiʻekiʻe loa nā koi maikaʻi o ka polycarbonate - grade BPA, e koi ana i ka maʻemaʻe ma mua o 99.5%, kahi hapa nui o ka phenol ma lalo o 5 × 10⁻⁵, kahi kala APHA ma lalo o 20, a me nā kapu ma ke kiko hau, lehu, nā ion hao, a pēlā aku. ʻOiai ʻo Bisphenol A BPA kahi mea wela a me ka oxygen me kahi kiko paila kiʻekiʻe loa (360.5 °C), lawe mai kēia mau ʻano i nā pilikia ʻenekinia kemika he nui i ka hana ʻana o ka Bisphenol A BPA kiʻekiʻe.