Preparation and Properties of Diol Functionalized Epoxidized Natural Rubber

Punyanich Intharapat; Aroon Kongnoo

doi:10.4028/www.scientific.net/AMR.747.493

Paper Titles

New Polyimide Based Composite Films for Fuel Cells: Study of the Porous Structure
p.477

Anti-Algal Performances for Biocide-Enhanced Low-Density Polyethylene Film
p.481

Determining the Co-Efficient of End Constraint of Stretch Formed Microtruss Materials
p.485

Electrochemical Reactivity on Conducting Polymer Alloys
p.489

Preparation and Properties of Diol Functionalized Epoxidized Natural Rubber
p.493

Study on Nonlinear Optical Properties of BSS Material
p.497

Anti-Bacterial Efficacies and Discolorations of Polypropylene Doped with HPQM Based Water Solution and Neusilin
p.501

Synthesis and Characterization of Supramolecular Elastomers from Polyacids Composed of Vegetable Oils
p.505

Functional Modification of Bamboo Rayon (Cellulose) Fabric to Render it Antibacterial and UV Protective
p.509

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 747Preparation and Properties of Diol Functionalized...

Preparation and Properties of Diol Functionalized Epoxidized Natural Rubber

Abstract:

Diol functionalized epoxidized natural rubber (diol-f-ENR) was carried out based on epoxidized natural rubber containing 25 mol % of epoxide group (ENR-25) in tetrahydrofuran (THF) with the presence of acetic acid and deionize water. Reaction was performed using a molar ratio [formic aci/[epoxid and [deionized wate/[epoxid =1 and 10, respectively at temperature of 60±1 oC for 24 h. It was found that amount of epoxide groups converted to diols increased with increasing reaction time, and up to 11.8 mol % of diols unit at reaction time for 24 h. Glass transition temperature (T_g) shifted toward high temperature of-45 oC,-40.1, -32.3 oC and-23.2 oC with increasing of diols level from 0, 4.2, 6.9 and 11.8 mol %, respectively. For thermal stability, it was found that the temperature of maximum weight loss rate (T_max) of diol-f- ENR was higher than that of ENR-25 indicating the thermal enhancing effect of polar group (i.e., diols). The effect of the diol content (i.e., 4.2, 6.9 and 11.8 mol %) on lap shear strength test of glass sheet specimens showed that the adhesive strength increased from 0.18-0.35 MPa with increasing of diol content.

You might also be interested in these eBooks

Multi-Functional Materials and Structures IV

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 747)

Pages:

493-496

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.747.493

Citation:

Cite this paper

Online since:

August 2013

Authors:

Punyanich Intharapat, Aroon Kongnoo

Keywords:

Diol, Epoxidized Natural Rubber (ENR), Modification

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] J.C. Soutif, J.C. Brosse, Modification au deuxième degré de polymers époxydés: 2. Addition de l'acide benzoїque sur polyènes époxydés, Makromol. Chem. 185 (1984) 839-846.

DOI: 10.1002/macp.1984.021850501

Google Scholar

[2] S. Jayawardena, D. Reyx, D. Durand, C.P. Pinazzi, Synthesis of macromolecular antioxidants by reaction of aromatic amines with epoxidized polyisoprene: 3. Reaction of 4-anilinoaniline with epoxidized 1, 4-polyisoprene, Makromol. Chem. 185 (1984).

DOI: 10.1002/macp.1984.021850103

Google Scholar

[3] D. Derouet, J.C. Brosse, A. Challioui, Alcoholysis of epoxidized polyisoprenes by direct opening of oxirane rings with alcohol derivatives 1. Modelization of the reaction, Eur. Polym. J. 37 (2001) 1315-1326.

DOI: 10.1016/s0014-3057(00)00266-4

Google Scholar

[4] D. Derouet, Q.N. Tran, H. Ha Thuc, Synthesis of N, N-diethyldithiocarbamate functionalized 1, 4-polyisoprene, from natural rubber and synthetic 1, 4-polyisoprene, Eur. Polym. J. 43 (2007) 1806-1824.

DOI: 10.1016/j.eurpolymj.2007.02.036

Google Scholar