Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerSynthesis and Monomer Reactivity Ratios Of [3-(Trimethoxysilyl) Propyl Methacrylate/Nvinyl Pyrrolidone] Copolymer| Abstract

44 7460 854 031

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Abstract

Synthesis and Monomer Reactivity Ratios Of [3-(Trimethoxysilyl) Propyl Methacrylate/Nvinyl Pyrrolidone] Copolymer

Author(s): Ameen Hadi Mohammed, Mansor B Ahmad, Nor Azowa Ibrahim and Norhazlin Zainuddin

Copolymer of 3-(trimethoxysilyl) propyl methacrylate (TMSPM) with N-vinyl pyrrolidone (VP) was synthesized by free radical polymerization in dry benzene using (BPO) as initiator. The copolymer was characterized by FTIR, 1H-NMR. Thermal properties of homopolymers and copolymers were studied by TGA and DSC. The copolymer composition was determined by elemental analysis. The monomer reactivity ratios were estimated by different procedures: Fineman-Ross, Kelen-Tudos, Mayo-Lewis and curve fitting method. The derived reactivity ratios (r1, r2) are: (3.722, 0.097), and found that the reactivity of the monomer TMSPM is more than the monomer NVP. The sequence distribution of monomers in the copolymer and the microstructure of copolymer were calculated by statistical method based on the average reactivity ratios.


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