نتایج جستجو برای: eco friendly
تعداد نتایج: 55330 فیلتر نتایج به سال:
Microcapsules are employed extensively in various applications; however, most composed of synthetic plastics. Thus, substitution their component materials is essential to prevent environmental problems associated with primary microplastics. Herein, we report the synthesis eco-friendly silica core–shell microcapsules for fragrance retention. The shell was prepared via oil/water emulsion template...
This paper presents the results of new composite materials based on polylactide and coffee grounds sorption characteristics study. New material, that include as additive material is cheaper than one common polylactide. All types dishes cam be made from they also will biodegradable, The properties were tested in different liquid medium. last was chosen among most wide spread mediums which are co...
AbstrakPondok pesantren merupakan sekolah yang mengajarkan tentang ilmu agama islam, perpaduan antara kurikulum pondok dan pendidikan nasional. Perkembangan saat ini dirasa cukup tinggi dengan banyaknya bermunculan di sekitar Duri. Karena tingginya minat orang tua memasukkan anak-anaknya ke diluar kota untuk mendapat fasilitas belajar lebih baik, Duri lokasi memiliki potensial pembangunan mengi...
a simple highly versatile and efficient sonochemical synthesis of 1,2,4,5-tetrasubstituted and 2,4,5-trisubstituted imidazoles is achieved by condensation of 1,2-dicarbonyl compound, aldehyde, ammonium acetate and primary amine using antimony trichloride immobilized on silica gel (sio2-osbcl2) as a catalyst in ethanol at moderate temperature. operational simplicity, practicability and applicabi...
one-pot preparation of 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles has been conducted in the presence of poly(4-vinylpyridinium butane sulfonic acid) hydrogen sulfate, p(4vpbsa)hso4, as an efficient dual acidic catalyst under solvent-free conditions. reusability of the catalyst, easy work-up procedure, eco-friendly reaction conditions, short reaction times and high yields of th...
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