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Improvement of Thermal and Mechanical Properties of Vietnam Deproteinized Natural Rubber via Graft Copolymerization with Methyl Methacrylate
Joint Authors
Dung, T. A.
Nhan, N. T.
Thuy, T. T.
Duy, Hieu Nguyen
Thi, Thuong Nghiem
Nguyen, Thu Ha
Van, Nam Nguyen
Quang, Tung Tran
Huy, Tung Nguyen
Source
International Journal of Polymer Science
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-14
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
In this study, we investigated the improvement of the thermal and mechanical properties of Vietnam deproteinized natural rubber (DPNR) via graft copolymerization of methyl methacrylate (MMA).
The graft copolymerization was achieved successfully in latex stage using tert-butyl hydroperoxide (TBHPO) and tetra-ethylenepentamine (TEPA) as radical initiators at 30°C.
By grafting with various MMA feeds and initiator concentration of 6.6×10−5 mol/g-rubber, the highest grafting efficiency and conversion were achieved at MMA of 15 wt.% per kg of rubber, 68% and 90%, respectively.
The structure of grafted copolymers was characterized by 1H NMR, FTIR-ATR, and GPC, and thermal properties were investigated through DSC and TGA measurements.
These showed that graft copolymers were more stable and rigid than DPNR.
Storage modulus (G′) of graft copolymer was found to double that of DPNR, which contributed to the formation of graft copolymer.
After sulfur vulcanization, the mechanical properties of DPNR-graft-PMMA, such as tensile strength, tear strength, and hardness, were improved significantly.
Curing behaviors of the graft copolymers were found to be remarkably better than virgin DPNR.
American Psychological Association (APA)
Nhan, N. T.& Duy, Hieu Nguyen& Dung, T. A.& Thi, Thuong Nghiem& Nguyen, Thu Ha& Van, Nam Nguyen…[et al.]. 2020. Improvement of Thermal and Mechanical Properties of Vietnam Deproteinized Natural Rubber via Graft Copolymerization with Methyl Methacrylate. International Journal of Polymer Science،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1173924
Modern Language Association (MLA)
Nhan, N. T.…[et al.]. Improvement of Thermal and Mechanical Properties of Vietnam Deproteinized Natural Rubber via Graft Copolymerization with Methyl Methacrylate. International Journal of Polymer Science No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1173924
American Medical Association (AMA)
Nhan, N. T.& Duy, Hieu Nguyen& Dung, T. A.& Thi, Thuong Nghiem& Nguyen, Thu Ha& Van, Nam Nguyen…[et al.]. Improvement of Thermal and Mechanical Properties of Vietnam Deproteinized Natural Rubber via Graft Copolymerization with Methyl Methacrylate. International Journal of Polymer Science. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1173924
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1173924