Solubility na ruwa na ethuloed ethululo ether ya shafi zafin jiki. Gabaɗaya magana, yawancin masu selulooe suke narkewa cikin ruwa a yanayin zafi. Lokacin da zazzabi ya tashi, squubitionsu sannu a hankali ya zama matalauta kuma ƙarshe ya zama wanda ke ciki. Lowerarancin yanayin zafin jiki (LCST: Yawan yanayin zazzabi ne mai mahimmanci don rarrabe yanayin yanayin da ake canzawa, etherarfin mafita, eth ether ya shiga cikin ruwa.
An yi nazarin dumama na ruwa mai ruwa da hanyoyin ruwa mai ruwa. Kamar yadda aka ambata a sama, lokacin da methylllulose yake a ƙarancin zafin jiki, macromeleces suna kewaye da kwayoyin ruwa su samar da tsarin keji. Zafin da aka yi amfani da shi ta tashi zafin zazzabi zai karya haɗin hydrogen tsakanin kwayar cutar da MCTROLELECHORET DOMLUSL KYAUTA, wanda ya sa ya yiwu a shirya da kuma nazarin Hydroxobic Inch of Hydroxypropyl methylcellulhin da hydroxse ya haifar da hydrogel. Idan kungiyoyin methyl a kan sarkar wannan kwayoyi guda na kwayoyi sune aka ɗaure su, wannan hulɗa ta turawa zai sanya dukkanin kwayoyin da ke bayyana. Koyaya, karuwa a cikin zazzabi zai ƙara ƙaruwa da motsi na sarkar, hulɗa ta hydrophobic a cikin kwayoyin za su iya canzawa daga jihar da aka fifita shi. A wannan lokacin, hulɗa mai hydrophobic tsakanin kwayoyin suna farawa ne don mamaye. Lokacin da yawan zafin jiki hankali yakan tashi, da kuma shaidar hydrogen sun karye, kuma mafi da kuma karin kwayoyin sel na kusa da juna suna tarawa ta hanyar hadewar ruwa. Tare da ƙara yawan zafin jiki, a ƙarshe duk shaidu na hydrogen sun karye, kuma ƙungiyar hydrophobic ta kai mafi girman, ƙara adadin da girman yawan tarin kayan hydrophobic. A lokacin wannan tsari, methylcellulose ya zama mai zurfi wanda ba a iya shiga cikin ruwa. Lokacin da zazzabi ya tashi zuwa inda aka tsara tsarin cibiyar sadarwa mai girma uku tsakanin macromearclecules, ya bayyana don samar da gel macroscopically.
Jun Gao da George Haidar Et Alyi magana da zazzabi na sel mai ruwa mai kyau ta hanyar watsar da zafin rana ta hydroxypropyl sel na hydroxypropyl pelfulose ne kusan 410c. A wani zazzabi ƙasa da 390c, sarkar ƙwayoyin sarkar sel guda ɗaya na sarkar ƙwayoyin sel guda ɗaya, kuma babu tarawa tsakanin macromearcolecules. Lokacin da zazzabi ya ƙaru zuwa 390c, hulɗa ta Hydrophobic tsakanin sarƙoƙin kwayoyin cuta, da kuma karuwa na polymer ya zama talakawa. Koyaya, a wannan zazzabi, kawai karamin ɓangare ne na ƙwayar ƙwayar ƙwayar ƙwayar cuta ta hanyar da ke ɗauke da sarƙoƙin ƙwayoyin cuta, yayin da yawancin kwayoyin suna cikin sarƙoƙi guda. Lokacin da zazzabi ya hau zuwa 400C, more macromearceles suna shiga cikin samuwar tara kashi, amma a wannan lokacin, wasu kwayoyin har yanzu suna cikin sarƙoƙi guda. Lokacin da zazzabi yake a cikin kewayon 410c-440C, saboda mai ƙarfi hydrophobic tasiri na ruwa, ƙarin kwayoyin suna tarawa don samar da girma da kuma abubuwan kwayoyin halitta tare da ɗakunan rarraba. Hukata ta zama mafi girma da denser. Samuwar wadannan tarin-hydrophobic ke haifar da samuwar yankuna na babba da karuwa na polymer cikin bayani, wanda ake kira microscopic rabuwa.
Ya kamata a nuna cewa tarajojin nanoparticle tara suna cikin tsayayyen jihar Kinetically, ba yanayin tsadar magana da zafi ba. Wannan saboda duk da cewa an lalata tsarin keji na farko, har yanzu akwai haɗin haɗin hydrogen tsakanin rukunin Hydroxhilic Hydroxhilyl da kwayoyin cuta, wanda ke hana ƙungiyoyin hydrophobic kamar methyl da hydroxypropyl daga haɗuwa tsakanin. Taro na nanoparticle ya kai wani yanki mai tsauri da kuma tsayayyen yanayi a karkashin tasirin hadin gwiwar abubuwa biyu.
Bugu da kari, binciken ya kuma gano cewa ƙididdigar dumama kuma yana da tasiri ga samuwar barbashi tarin barbashi. A cikin sauri dumama dumama, da hadadden sarƙoƙin kwayoyin cuta yana da sauri, kuma girman da aka samar da abubuwan da aka samar da shi. Kuma lokacin da dumama dumama yake da hankali, macromeleces suna da ƙarin damar samun dama don samar da manyan abubuwa na nanoparticle.
Lokaci: Apr-17-2023