The preparation of some benzothiazole polymers and the study of their electrical conductivity properties
Other Title(s)
تحضير عدد من بوليمرات البنزوثيازول و دراسة خواص توصيليتها الكهربائية
Joint Authors
Khattab, Asad Faysal
Ayyub, Haytham Ahmad
al-Taan, Layth Muhammad
Source
al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah
Issue
Vol. 29, Issue 4 (31 Dec. 2020), pp.140-153, 14 p.
Publisher
University of Mosul College of Education for Pure Science
Publication Date
2020-12-31
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Topics
Abstract AR
عند تشويب البوليمرات المتعاقبة بمشوبات واهبة أو مستقبلة فان توصيليتها الكهربائية ستزداد بصورة كبيرة وصلت إلى حدود Ω-1.cm-1 10-6.
ان البوليمرات المشوبة سوف تكون من نوع n أوp حسب نوع المادة المشوبة المضافة.
في هذا العمل تم تحضير أربعة بوليمرات ضمن سلسلها الرئيسية على مجموعة البنزوثايازول.
شخصت مجموعة المونومرات و البوليمرات المحضرة باستخدام طيف الأشعة تحت الحمراء .FTIR أثبت التحليل الدقيق للعناصر CHN التراكيب الكيمياوية للبوليمرات المحضرة في حين تم قياس درجة الانتقال الزجاجي Tg من خلال تقنية التحليل الحراري DSC.
استخدم نوعين من المشوبات لهذه البوايمرات، اليود و ايوديد الصوديوم.
تم قياس التوصيلية الكهربائية للبوليمرات المشوبة باستخدام خلية ثلاثية الأقطاب.
النتائج أظهرت زيادة في التوصيلية الكهربائية مع زيادة نسبة المشوب و لكن إلى مدى معين.
حسبت طاقة التنشيط لعملية التوصيل الكهربائي من خلال قياس التوصيلية في درجات حرارية مختلفة.
قيم طاقة التنشيط أثبتت أن مرونة السلاسل البوليمرية هي العامل الرئيسي المؤثر على التوصيلية الكهؤبائية.
أثبتت طريقة المجس الحراري و تأثير هول نوعية البوليمر فيما من نوع n أو p حسب نوع المشوب المستخدم حيث عند تشويب البوليمر باليود أنتج نوع n في حين التشويب بايوديد الصوديوم انتج بوليمر من نوع p.
Abstract EN
As the conjugated polymers are doped with some electron donor or acceptor dopants, their electrical conductivity increased thoroughly to about 10-6 Ω-1.
cm-1.
The doping of the polymers may give an n or p semiconductor characteristic according to the types of the dopants that are used.
Within the frame of this work, four types of conjugated polymers with benzothiazole as a major moiety in their backbone have been prepared.
The prepared monomers and polymers have been characterized by FTIR spectroscopy.
Elemental analysis of the polymers (CHN) demonstrates their chemical structure while the DSC thermal analysis illustrates its Tg.
The polymers were doped with two types of dopants, iodine and sodium iodide.
The electrical conductivity of the doped polymers was measured with three probe cell.
The results show increasing in the electrical conductivity with dopant concentration to some levels.
The activation energy of the electrical conductivity process was also studied by measuring the electrical conductivity in different temperature.
According to the magnitude of the activation energy, we can conclude that the chain flexibility is the dominate factor that influenced on electrical conductivity.
Hall Effect and hot probe measurements reveal that the polymer can be considered as n or p type according to the type of the doping.
It was concluded that the doping with iodine produced an n-type while the doping with sodium iodide produced the p- type.
As the conjugated polymers are doped with some electron donor or acceptor dopants, their electrical conductivity increased thoroughly to about 10-6 Ω-1.
cm-1.
The doping of the polymers may give an n or p semiconductor characteristic according to the types of the dopants that are used.
Within the frame of this work, four types of conjugated polymers with benzothiazole as a major moiety in their backbone have been prepared.
The prepared monomers and polymers have been characterized by FTIR spectroscopy.
Elemental analysis of the polymers (CHN) demonstrates their chemical structure while the DSC thermal analysis illustrates its Tg.
The polymers were doped with two types of dopants, iodine and sodium iodide.
The electrical conductivity of the doped polymers was measured with three probe cell.
The results show increasing in the electrical conductivity with dopant concentration to some levels.
The activation energy of the electrical conductivity process was also studied by measuring the electrical conductivity in different temperature.
According to the magnitude of the activation energy, we can conclude that the chain flexibility is the dominate factor that influenced on electrical conductivity.
Hall Effect and hot probe measurements reveal that the polymer can be considered as n or p type according to the type of the doping.
It was concluded that the doping with iodine produced an n-type while the doping with sodium iodide produced the p- type.
American Psychological Association (APA)
Khattab, Asad Faysal& Ayyub, Haytham Ahmad& al-Taan, Layth Muhammad. 2020. The preparation of some benzothiazole polymers and the study of their electrical conductivity properties. al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah،Vol. 29, no. 4, pp.140-153.
https://search.emarefa.net/detail/BIM-1235533
Modern Language Association (MLA)
Khattab, Asad Faysal…[et al.]. The preparation of some benzothiazole polymers and the study of their electrical conductivity properties. al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah Vol. 29, no. 4 (2020), pp.140-153.
https://search.emarefa.net/detail/BIM-1235533
American Medical Association (AMA)
Khattab, Asad Faysal& Ayyub, Haytham Ahmad& al-Taan, Layth Muhammad. The preparation of some benzothiazole polymers and the study of their electrical conductivity properties. al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah. 2020. Vol. 29, no. 4, pp.140-153.
https://search.emarefa.net/detail/BIM-1235533
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 152-153
Record ID
BIM-1235533