Poliefirlar \u2014 geterozanjir- li yukrri molekulyar birikmalar. Oddiy va murakkab P.ga bo’linadi. Oddiy P. \u2014 asosiy zanjirida oddiy efir boglarini tutgan makromolekulalar. Turli kislo- tali agentlar, spirtlar, al-degidlar, izosianatlar va b. b-n reak-tsiyaga kiri- shadi. Yuqori t-Rada destruk-tsiyalanadi. Oddiy P. alkilenlarning beqaror oksid- larini yoki aldegidlarni polimerlab, kup atomli spirtlarni suvsizlantirib, aldegidlar b-n 2 atomli spirtlarni re- aktsiyaga kiritib va b. usullar yordamida hosil qilinadi. Oddiy P.ga mansub po- lioksimetilen, penton, epoksid smola- lar muhim ahamiyatga ega. Ular konstruk- tsion materiallar, napda hosil qiluvchi moddalar, emulgatorlar, dielektriklar va boshqalar i.ch.da qo’llanadi. Murak- kab P.\u2014umumiy formulasi [\u2014ORO OR’CO\u2014]pbo’lgan polimerlar, bu erda R va R’ \u2014 2 valentli radikallar. Nukle- in kislotalar, dammar, shellak, akaroid, kahrabo kabi tabiiy birikmalar ham murakkab P.dir. Murakkab P. murakkab efir bog’larini hosil qilishga moyil birikmalarni polikondensatlash, TSI- klik efirlarni gidrolitik polimerlash va to’yinmagan efirlarni radikal mexa- nizm bo’yicha polimerlash usullari b-n olinadi. Eng muhim sintetik murakkab P.ga alkid smolalar, polieti-lenteref- Talat, poliakrilatlar, poli-karbonat- lar, to’yinmagan P. vab. kiradi. P. sano- atning turli sohalarida keng qo’llanadi.<\/p>\n","protected":false},"excerpt":{"rendered":"
Poliefirlar \u2014 geterozanjir- li yukrri molekulyar birikmalar. Oddiy va murakkab P.ga bo’linadi. Oddiy P. \u2014 asosiy zanjirida oddiy efir boglarini tutgan makromolekulalar. Turli kislo- tali agentlar, spirtlar, al-degidlar, izosianatlar va … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":99837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[226],"tags":[],"class_list":["post-118808","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-p-harfi","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"kr","enabled_languages":["uz","kr","ru"],"languages":{"uz":{"title":true,"content":true,"excerpt":false},"kr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/118808","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/comments?post=118808"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/118808\/revisions"}],"predecessor-version":[{"id":118852,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/118808\/revisions\/118852"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/media\/99837"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/media?parent=118808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/categories?post=118808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/tags?post=118808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}