کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
598236 1454087 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Main transition-like feature in polylactic acid langmuir films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Main transition-like feature in polylactic acid langmuir films
چکیده انگلیسی

Polylactic acid is a simple polymer that has attracted interest, many years ago, as a biocompatible and biodegradable material for temporary implants and sutures that disintegrate gradually with time in vivo. Recently, it is also promoted as environmentally benign polymer for mass applications, e.g., packing film. We report about a phase transition in the monolayers, at the water–air interface, that looks and behaves similar to the main transition of monomer compound monolayers. We investigate the temperature dependence and the molecular weight dependence of this transition as well as how it is shifted in two component films, fabricated from mixtures of materials with different molecular weight. These results suggest that polylactic acid may not only be useful as a structural, passive material but that it also might be useful as a stable component of artificial active biological systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volumes 284–285, 15 August 2006, Pages 175–179
نویسندگان
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