کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7786266 1500622 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carboxymethyl starch/montmorillonite composite microparticles: Properties and controlled release of isoproturon
ترجمه فارسی عنوان
کربوکسی متیل نشاسته / میکروکاشی کامپوزیت مونتموریلونیت: خواص و کنترل آزاد شده از ایزوپروترون
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Preparation of novel high substituted carboxymethyl starch-based microparticles containing sodium montmorillonite (MMT) by crosslinking with Al3+ was described. For preparing nanocomposite granules carboxymethyl starch (CMS) from native potato starch as well as CMS from amylopectin has been used. The hydrophilic CMS/MMT composite systems were used for herbicide, i.e. isoproturon encapsulation (ca. 75% encapsulation efficiency). The herbicide release rate from CMS/MMT composites in water was significantly reduced when compared to commercial isoproturon: 95% released after ca. 700 h and ca. 24 h, respectively. Leaching in soil from composite systems was relatively slower than release in water. After a series of eight irrigations leached about 10% of isoproturon loaded. The CMS/MMT carriers could reduce the potential leaching of herbicide and beneficially reduce pollution of the environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 136, 20 January 2016, Pages 101-106
نویسندگان
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