Poliamidlar \u2014 makromoleku- la-sining asosiy zanjirida takrorlana- digan \u2014 so\u2014NH\u2014 guruhi tutgan sin- tetik polimerlar. Kimyoviy tuzilishiga ko’ra karbozanjirli va geterozanjirli bo’ladi. Karbozanjirli P. makromoleku- lasining asosiy zanjiri FA-kat uglerod atomlaridan tuzilgan, amid guruxlari esa tarmoklarda joylashganligi sabab- li (mas, poliakril-amid) ularni, odat- da, P.ga taalluq-li deb hisoblanmaydi. Geterozanjirli P. da CONH guruhi makromolekulaning asosiy zanjirida joylashgan bo’ladi. Geterozanjirli P. muhim ahamiyatga ega. Ular polikonden- slanshi yoki polimerlanish usullari b-n olinadi. Kimyoviy tuzilishiga ko’ra, oqsillar va peptidlar xam P., ammo tu- zilishi va xossalari «odatdagi» sinte- tik P.dan keskin farq qilganligi uchun ularni alohida sinfga ajratiladi. P. oq yoki oqish-qizg’ish rangli shoxsi- mon qattiq moddalar suyuklanish t-rasi 150 dan 430\u00b0 gacha. Ba’zi P. qovu-shoq suyuqliklar (smolalar). Mustahkamligi, qattiqligi, elastikligi, eyilishga, issiqqa, kimyoviy reagentlar ta’siriga barkaror. P. sintetik tolalar, plyonkalar, lo- klar, sun’iy charm olishda, fotografiya emulsiyalari tayyorlashda, mashinasoz- likda, elektr-radio qurilmalari, anti- friktsion va b. turli detallar tayyor- lashda qo’llanadi.<\/p>\n","protected":false},"excerpt":{"rendered":"
Poliamidlar \u2014 makromoleku- la-sining asosiy zanjirida takrorlana- digan \u2014 so\u2014NH\u2014 guruhi tutgan sin- tetik polimerlar. Kimyoviy tuzilishiga ko’ra karbozanjirli va geterozanjirli bo’ladi. Karbozanjirli P. makromoleku- lasining asosiy zanjiri FA-kat uglerod … 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-118907","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-p-harfi","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"ru","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\/ru\/wp-json\/wp\/v2\/posts\/118907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/comments?post=118907"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/118907\/revisions"}],"predecessor-version":[{"id":118940,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/118907\/revisions\/118940"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media\/99837"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media?parent=118907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/categories?post=118907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/tags?post=118907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}