تحلق البولي ايزوبرين الاصطناعي

Authors

  • حسين عبد الواحد

Abstract

تمت عملية تحلق البولي ايزوبرين الاصطناعي باستخدام ايثيل ألمنيوم ثنائي الكلوريد و ثلاثي كلورو حمض الخل )كوسيط ومساعد وسيط(. أدت عملية تحلق البوليمير المذكور إلى تشكل مركبات مختلفة أحادية، وثنائية، وثلاثية، ومتعددة الحلقات، حيث تمت دراستها باستخدام المطيافيات المعروفة مثل : مطيافية الأشعة تحت الحمراء (IR)، ومطيافية الطنين المغناطيسي النووي (NMR).

استخدم في هذا العمل مذيب جديد هو التولوين، ونظام تحريض جديد أدى إلى الحصول على مردود عالٍ وصل حتى 93% من البوليمير المحلق التام الذوبان في المذيبات العطرية و 7% فقط من الهلام الشبكي عديم الذوبان.

The cyclization of synthetic polyisoprene has been carried out using ethyl dichloride aluminium (Et AlCl2) and trichloroacetic acid (CCl3COOH) (as catalyst and cocatalyst). This cyclization produces different products with mono, or di, or tri, or more rings, which were achieved using spectroscopy methods such as IR and NMR.

In this work, the new incitation system and the toluene (as new solvent) have been used to obtain completely soluble polycyclic polymer in aromatic solvents with yields of 93% and insoluble lattice jell with yields of 7% only.

 

Downloads

Published

2018-12-04

How to Cite

1.
عبد الواحد ح. تحلق البولي ايزوبرين الاصطناعي. TUJ-BA [Internet]. 2018Dec.4 [cited 2025Jul.27];28(1). Available from: https://journal.latakia-univ.edu.sy/index.php/bassnc/article/view/4985

Issue

Vol. 28 No. 1 (2006): العلوم الأساسية

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.