Polymerization of ethylene in the presence of novel single-site titanium phenolate catalytic systems

Azizov, A. G.; Alieva, R. V.; Martynova, G.S.; Bagirova, Sh. R.; Kalbalieva, E. S.

doi:10.1134/s1560090409110049

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…It is known that the aluminum organic compounds, including MAO, are hydrolyzed as a result of interaction with electron‐donor compounds containing an active hydrogen atom (water, alcohol, ammonia, primary and secondary amines, etc.) 14, 15 …”

Section: Methodsmentioning

confidence: 99%

Preparation and study of thermal properties of phase change materials based on paraffin–alumina‐filled polyethylene

Vakhshouri¹,

Azizov²,

Aliyeva³

et al. 2010

J of Applied Polymer Sci

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Novel phase change materials based on paraffin and alumina-filled polyethylene (FPE) were prepared using a two-step process. In the first step, PE is synthesized using metallocene catalyst system. The synthesized PE is subsequently purified, whereas hydrated alumina-PE composites will be formed by the hydrolysis of aluminum organic cocatalyst and dispersion of hydrated alumina in the PE matrix. In the second step, paraffin-alumina-FPE composites were prepared by using the ex situ technique. Scanning electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, and differential scanning calorimetry were used to evaluate the structure and thermal properties of the composites. The results show that the incorporation of a suitable amount of alumina into the composites changes their thermal stability. It is also possible to improve the thermophysical properties of the thermal energy storage materials by altering the paraffin ratio to the FPE.

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Section: Methodsmentioning

confidence: 99%

Preparation and study of thermal properties of phase change materials based on paraffin–alumina‐filled polyethylene

Vakhshouri¹,

Azizov²,

Aliyeva³

et al. 2010

J of Applied Polymer Sci

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“…In our previous studies, novel and recyclable heterogenized catalysts, used in both ionic liquid media and organic solvents, were developed by the interaction of transition metal complexes containing ionic liquid ligands and aluminium organic compounds …”

Section: Introductionmentioning

confidence: 99%

Oligomerization of ethylene in the presence of heterogenized complex catalytic systems based on ionic liquid‐type substituted zirconium phenolates

Khamiyev

Azizov

Khanmetov

et al. 2016

Applied Organom Chemis

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The oligomerization of ethylene was investigated in the presence of novel catalytic systems consisting of alkylaluminium chlorides and heterogenized zirconium phenolates containing amino and imino hydrochloride substituents. It was determined that the composition of a synthesized oligomer and the activity or selectivity of the catalyst systems depend on various parameters such as the molar ratio of Zr:Al, the composition of alkylaluminium, the temperature of the reaction, the pressure of ethylene and the structure of zirconium phenolates. The results showed that C 4 -C 10 linear α-olefins were obtained with high selectivity when diethylaluminium chloride was used as a co-catalyst. The process of the separation of a synthesized oligomer from the catalyst containing amino and imino hydrochloride ionic liquid substituents was carried out by simple decantation, and after this process zirconium complexes could be reused several times for successive ethylene oligomerizations.

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Si̇rkoni̇um Fenolyat Kompleksləri̇ İşti̇rakinda Eti̇leni̇n Oli̇qomerləşməsi̇

Mətləb Xamiyev, Samir Şahmuradov,

Fidan Şirinova

2024

PAHTEI

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Amino hidroxlorid liqandlı heterogenləşdirilmiş sirkonium fenolyat kompleksləri sintez edilmiş və onların quruluşu müxtəlif analiz üsulları ilə xaraktaerizə olunmuşdur. Sintez edilmiş sirkonium fenolyat kompleksləri müxtəlif alüminium üzvi birəşmələri ilə aktivləşdirildikdən sonra üzvi həlledicilər mühitində onlar iştirakında etilenin oliqomerləşməsi prosesi tədqiq olunmuşdur. Müəyyən edilmişdir ki, alınan oliqomer məhsulun paylanması alüminium üzvi birləşməsinin növündən, reaksiya şəraitindən (temperatur, təzyiq və katalizator komponentlərin mol nisbəti) əsaslı sürətdə asılıdır. Birgə katalizator kimi Et2AlCl və Et3Al2Cl3 iştirakında alınan oliqomer məhsul aşağı molekullu olefinlərdən ibarət olduğu halda, birgə katalizator kimi EtAlCl2 iştirakında alınan reaksiya məhsulunun 31-36% - i 350 – dən yüksək temperaturda qaynayan polietilen yağ fraksiyası təşkil edir. Açar sözlər: etilen, oliqomerləşmə, olefinlər, sirkonium kompleksi.

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Polymerization of ethylene in the presence of novel single-site titanium phenolate catalytic systems

Cited by 3 publications

References 12 publications

Preparation and study of thermal properties of phase change materials based on paraffin–alumina‐filled polyethylene

Preparation and study of thermal properties of phase change materials based on paraffin–alumina‐filled polyethylene

Oligomerization of ethylene in the presence of heterogenized complex catalytic systems based on ionic liquid‐type substituted zirconium phenolates

Si̇rkoni̇um Fenolyat Kompleksləri̇ İşti̇rakinda Eti̇leni̇n Oli̇qomerləşməsi̇

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