synthesis and characterization of hydrophilic chitosan-polyvinyl acetate blends and their sorption performance in binary methanol–water mixture

تخليق وتوصيف مخاليط الكيتوزان-بولي فينيل أسيتات المحبة للماء وأداء امتزازها في خليط ثنائي من الميثانول والماء

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ID: 249405
2017
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Abstract
Chitosan-polyvinyl acetate (CHI-PVA) blends were prepared throughout copolymerization reaction. Chitosan (CHI) as a hydrophilic molecule was added to modify the blend surface of polyvinyl acetate (PVA). The sorption effects of CHI-PVA blends were studied in the presence of binary feed mixture of methanol–water (MW). The obtained blends were investigated by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), microscopic analysis and conductivity measurements to investigate the chemical structure, crystallinity, surface morphology and electric property, respectively. Effect of water content on the swelling performance of CHI-PVA blends based on (methanol/water) ratio was discussed. CHI-PVA complexes show high swelling performance with 20% CHI based blends from 50% water content in methanol–water mixture.
حُضِّرت مخاليط الشيتوزان-بولي (أسيتات الفينيل) (CHI-PVA) عبر تفاعل البلمرة المشتركة. وأُضيف الشيتوزان (CHI) بوصفه جزيئًا محبًا للماء لتعديل سطح خليط بولي (أسيتات الفينيل) (PVA). كما دُرست تأثيرات الامتزاز لمخاليط CHI-PVA في وجود خليط تغذية ثنائي من الميثانول والماء (MW). وفُحصت المخاليط الناتجة باستخدام مطيافية الأشعة تحت الحمراء بتحويل فورييه (FTIR)، وحيود الأشعة السينية (XRD)، والتحليل المجهري، وقياسات التوصيلية الكهربائية، وذلك للتحقق من التركيب الكيميائي، ودرجة التبلور، ومورفولوجيا السطح، والخواص الكهربائية، على التوالي. ونُوقش تأثير المحتوى المائي على أداء انتفاخ مخاليط CHI-PVA استنادًا إلى نسبة (الميثانول/الماء). وأظهرت معقدات CHI-PVA أداء انتفاخ مرتفعًا في المخاليط القائمة على 20% من الشيتوزان بدءًا من محتوى مائي قدره 50% في خليط الميثانول والماء.
Reference Key
ismail2017egyptiansynthesis Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Amr S. Ismail;Mohamed S.A. Darwish;Eid A. Ismail
Journal 9th international conference on intelligent systems 2018: theory, research and innovation in applications, is 2018 - proceedings
Year 2017
DOI
10.1016/j.ejpe.2016.02.006
URL
http://www.sciencedirect.com/science/article/pii/S1110062116300022
Keywords
chitosan petroleum products

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