تفاصيل الوثيقة
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نوع الوثيقة |
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مقال في مجلة دورية |
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عنوان الوثيقة |
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Synthesis and characterization of novel PPC-silica hybrid with improved thermal, mechanical, and water sorption properties Synthesis and characterization of novel PPC-silica hybrid with improved thermal, mechanical, and water sorption properties |
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الموضوع |
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كيمياء |
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لغة الوثيقة |
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الانجليزية |
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المستخلص |
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Organic-inorganic hybrids (H1-H5) based on environmentally friendly and biodegradable polymer, poly (propylene carbonate) (PPC) and tetraethoxysilane (TEOS) were synthesized using the sol-gel technique. The synthesized hybrids were characterized structurally and morphologically by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). H1-H5 were examined in term of detailed thermal, mechanical, and anti-water sorption properties using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA) nanoindentation, and thin film diffusion analysis, which revealed that H4 has the highest thermal, mechanical, and anti-water sorption properties. H4 greatly increased the thermal decomposition temperature (T d10%) and glass transition temperature, which are 45 and 11 °C higher than that of pure PPC. Accordingly, H4 showed a high storage modulus (2.54 × 109 Pa), elastic modulus (2.601 ± 0.110 GPa), hardness (0.175 ± 0.013 GPa), and lowest water absorption. This improvement in the thermal, mechanical, and anti-water absorption properties of PPC shows that PPC can be used as a packaging and bio-material. |
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ردمد |
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1598-5032 |
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اسم الدورية |
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Macromolecular Research |
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المجلد |
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19 |
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العدد |
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9 |
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سنة النشر |
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1432 هـ
2011 م |
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نوع المقالة |
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مقالة علمية |
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تاريخ الاضافة على الموقع |
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Saturday, March 10, 2012 |
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الباحثون
| شير بهادر خان | Khan, Sher Bahadar | باحث | دكتوراه | |
| Jongchul Seo | Seo, Jongchul | باحث | دكتوراه | |
| Eui Soung Jang | Jang, Eui Soung | باحث | دكتوراه | |
| Kalsoom Akhtar | Akhtar, Kalsoom | باحث | دكتوراه | |
| Kwang I Kim | Kim, Kwang I | باحث | دكتوراه | |
| Haksoo Han | Han, Haksoo | باحث | دكتوراه | hshan@yonsei.ac.kr |
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الرجوع إلى صفحة الأبحاث
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