{"product_id":"light-scattering-behavior-of-pnipa-hydrogels-at-different-temperatures-von-saadet-dogu-wilhelm-oppermann","title":"Light Scattering Behavior of PNIPA Hydrogels at Different Temperatures","description":"\u003cp\u003eThe first part of the book aims at a careful inspection of the influence of temperature on the microstructure of PNIPA gels synthesized by free radical cross-linking copolymerization, FRC, in the range 10-27.5 °C, i.e. below LCST by means of static and dynamic light scattering methods.Many studies have shown that structures of networks obtained by free radical cross-linking copolymerization generally seem to be inhomogeneous in the q-range \u0026lt;\u0026lt; 0.1 nm-1. An alternative approach to obtain homogeneous gels is UV induced photo cross-linking polymerization, PC. Cross-links are expected to be introduced randomly in space for photo cross-linked gels.The purpose of the second part of this study is to compare network structures i.e. inhomogeneity, of the free radical cross-linking PNIPA gels (FRC gels) prepared at 25 °C to photo gels (PC gels) synthesized by photo cross-linking polymerization of (N-isopropylacrylamid)-2-(dimethylmaleimido)- N -ethyl-acrylamide, poly(NIPA-co-DMMIAAm) at observation temperatures 25, 20, 15, 10, 30 °C (in that sequence).It is expected that photo gels starting from semi-dilute polymer solution are more homogenous than free radical gels.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783639762648\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783639762648","offer_id":39423107498077,"sku":"9783639762648","price":59.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/614f61de-9e7c-406d-be4f-5e876321c512.jpg?v=1758950327","url":"https:\/\/shop.autorenwelt.de\/en\/products\/light-scattering-behavior-of-pnipa-hydrogels-at-different-temperatures-von-saadet-dogu-wilhelm-oppermann","provider":"Autorenwelt Shop","version":"1.0","type":"link"}