Cover Image

Penghidrogenan Getah Asli Cecair dan Getah Asli Cecair Terepoksida Menggunakan Diimida

Nur Aidasyakirah Mohd Tahir, Nur Hanis Adila Azhar, Hamizah Md. Rasidi, Siti Fairus M. Yusoff


Penghidrogenan getah asli cecair (LNR) dan getah asli cecair terepoksida (LENR) dilakukan dengan menggunakan sumber diimida daripada 2,4,6-trimetilbenzenasulfonil hidrazida (MSH) untuk meningkatkan sifat fizikal, sifat kimia dan kestabilan terma bagi elastomer yang berasaskan diena. Mikrostruktur LNR dan getah asli cecair terhidrogen (HLNR) dianalisis menggunakan spektroskopi inframerah transformasi Fourier (FTIR) dan resonans magnet nukleus (NMR). Kestabilan terma bagi LNR dan HLNR ditentukan melalui analisis termogravimetri (TGA). Parameter seperti nisbah berat MSH:LNR, pelarut, masa dan suhu dikaji untuk mendapatkan peratusan penghidrogenan yang paling tinggi. Hasil kajian mendapati bahawa peratus penghidrogenan yang paling tinggi iaitu 55.0% diperolehi dengan menggunakan xilen sebagai pelarut, nisbah berat 1:1, masa selama 50 minit dan pada suhu 100 °C. Kestabilan terma bagi HLNR juga dapat dibuktikan dengan melihat kepada peningkatan suhu degradasi di mana HLNR (438 °C) adalah lebih tinggi berbanding LNR (380 °C). 


penghidrogenan; getah asli cecair; getah asli cecair terepoksida; 2,4,6- 30 trimetilbenzenasulfonil hidrazida

Full Text:



Samran, J., Phinyocheep, P., Daniel, P. & Kittipoom, S. Hydrogenation of Unsaturated Rubbers Using Diimide as a Reducing Agent. J. Appl. Polym. Sci., (2004) 95(1): 16-27.

Abdullah I. (1994) Liquid Natural Rubber: Preparation and Application. In: Ghiggino K.P. (eds) Progress in Pacific Polymer Science 3. Springer, Berlin, Heidelberg.

Brosse, J. C., Boccaccio, G. & Pautrat, R. International Symposium on Powdered, Liquid and Thermoplastic Natural Rubber, Phuket, Thailand, (1981).

Gazeley, K. F., & Mente, P. G. (1990). Malaysian Patent, MY 100304-A. Method for reducing the molecular weight of rubber latex.

Ravindran, T., Nayar, M. R. G. & Francis, D. J. Production of Hydroxyl-Terminated Liquid Natural Rubber. J. Appl. Polym. Sci., (2008) (35): 1227-1239.

Tan, S. K., Ahmad, S., Chia, C. H., Mamun, A. & Heim, H. P. A Comparison Study of Liquid Natural Rubber (LNR) and Liquid Epoxidized Natural Rubber (LENR) as the Toughening Agent for Epoxy. Am. J. Mater. Sci., (2013) 3(3): 55-61.

Phinyocheep, P., Phetphaisit, C. W., Derouet, D., Campistron, I. & Brosse, J. C. Chemical Degradation of Epoxidized Natural Rubber Using Periodic Acid: Preparation of Epoxidized Liquid Natural Rubber. J. Appl. Polym. Sci., (2005) 95(1): 6-15.

Phinyocheep, P. & Duangthong, S. Ultraviolet-Curable Liquid Natural Rubber. J. Appl. Polym. Sci., (2000) 78(8): 1478-1485.

Singha, N. K., De, P. P. & Sivaram, S. Homogeneous Catalytic Hydrogenation of Natural Rubber Using RhCl(PPh3)3. J. Appl. Polym. Sci., (1997) 66(9): 1647-1652.

Azhar, N. H. A, Jamaluddin, N., Rasid, H. M., Yusof, M. J. M & Yusoff, S. F. M. Studies on Hydrogenation of Liquid Natural Rubber Using Diimide. Int. J. Polym. Sci., (2015) (12): 1-6.

Nghia, P. T., Onoe, H., Yamamoto, Y. & Kawahara, S. Hydrogenation of Natural Rubber Having Epoxy Group. Colloid Polym. Sci., (2008) 286(8): 993-998.

Kargarzadeh, H., Ahmad, I., Abdullah, I., Thomas, R., Dufresne, A., Thomas, S., & Hassan, A. Functionalized liquid natural rubber and liquid epoxidized natural rubber: A promising green toughening agent for polyester. J. Appl. Polym. Sci., (2014) 132(3): 41292

Miller, C. E. Hydrogenation with Diimide. J. Chem. Ed., (1965) 42(5): 254

Phinyocheep, P., Pasiri, S., & Tavichai, O. Diimide hydrogenation of isoprene-styrene diblock copolymers. J. Appl. Polym. Sci., (2002) 87(1): 76-82.

Rasid, H. M., Azhar, N. H. A., Jamaluddin, N., & Yusoff, S. F. M. Mild Approach for Non-Catalytic Hydrogenation of Liquid Natural Rubber Using 2,4,6-Trimethylbenzenesulfonyl Hydrazide as the Diimide Source. Bull. Korean Chem. Soc., (2016) 37(6): 797-801.

Ha, N. T., Shiobara, K., Yamamoto, Y., Fukuhara, L., Nghia, P. T. & Kawahara, S. Preparation and Characterization of Hydrogenated Natural Rubber with Hydroxyl Groups. Polym. Adv. Technol., (2015) 26(12): 1504-1511.


  • There are currently no refbacks.

Call for Submissions

We welcome submissions for the coming issue that will be officially published in March 2022. We are committed to providing results of reviewing within two weeks, and publishing the paper within one month from the submission date (subjected to responses by authors). This means accepted papers will be available online even before the issue is published officially.

Publons Partners

Journal of Polymer Science and Technology (JPST) is now one of Publons Partners. This means biodata of reviewers in Publons will be automatically updated once reviewing on articles submitted to JPST is completed (subjected to terms and conditions).

How to promote journal articles

Promoting your journal article is imperative to maximise the exposure, enhance the discoverability and increase engagement with readers and other academics. Together with the publisher, as an author, you can help to promote your newly published articles via the following:

1) Institutional webpage.
Provide the link of your latest article in your institutional website. The webpage visitors who view your profile will be able to see your latest research and publications.

2) Social media.
The rise of the social media has also profoundly affected the publishing fraternity. More and more users have chosen the social media platforms as a way of sharing. Social media sharing helps foster convenient dissemination of information, which can be achieved within a short time. You can share your article in major online social media platforms including Twitter, Facebook, LinkedIn and so on.

3) Utilise scholarly networking and reference platforms.
A scholarly or academic networking platforms such as, MyNetResearch, ResearchGate, Mendeley and so on are indeed useful as they help bring scholars of common areas of expertise close together.

4) Press Releases.
If your article involves a new, significant or important discovery, consider linking up with media organisations for a press release. This brings your work to the mainstream media.

5) Blog.
If you keep a personal blog, you can get your blog readers updated with the list of your most recently published articles and the development in your area of research. Linking your article in your personal blog can vastly enhance the discoverability. Discuss briefly about the article and how the users might benefit from it.

6) Add to reading list or assignment.
Add your article (or the journal your article is published) as essential reading to your students. You may also create related assignments, e.g. review of the article, or have them discussed about the write up in class.

7) Add to your signature.
Announce your latest publication underneath your signature. Provide a link where the article can be downloaded/viewed.