Ultraviolet-curable liquid natural rubber

Synthesis of acrylated styrene-isoprene-styrene copolymer

“…SIS contains a phase structure similar to styrenebutadiene-styrene block copolymer (SBS); the epoxidation reaction was investigated by Hsiue and Yang [1], Jian and Hay [2], and Margaritis et al [3]. In addition, SIS molecules consist of isoprene units similar to the natural rubber; the epoxidized natural rubber was studied by Nakason et al [4] and Saito et al [5] while the acrylated natural rubber was studied by Phinyocheep and Duangthong [6], and Xuan and Decker [7]. Acrylated SIS (ASIS) was synthesized through acrylation of epoxidized SIS (ESIS), since the epoxide ring is reactive and unstable.…”

“…Influence of temperature on acrylation yields indicated that the faster reaction occurred with the higher temperature due to the increase in reactivity. This result is in accordance with the report by Phinyocheep and Duangthong [6]. That is, the higher reaction temperature resulted in the higher rate of addition reaction.…”

Development of Protective Coatings for Co-Sequestration Processes and Pipelines

“…The UV curable formulation needs a photosensitive group present such as an acrylic. However, this could be detrimental to the SCCO2 resistance property 48 . To make good adhesion to the metal and the primer, which is good for eliminating the blister formation on the coatings caused by the exposure to SCCO2, rubber hydrohalide, hydrochloride rubber, or cyclicized rubber are strongly recommended 49 .…”

Pengoptimuman Tindak Balas Penghidrogenan Getah Asli Cecair melalui Kaedah Rangsangan Permukaan

“…Modifikasi NR kepada LNR menghasilkan NR yang mempunyai rantai polimer yang lebih pendek dan berat molekul yang lebih rendah (M w <10 5 ) tidak mengubah struktur utama rantai poliisoprena. Proses modifikasi NR kepada LNR boleh dilakukan melalui kaedah redoks (Phinyocheep & Duangthong 2000), pengoksidaan terma (Kargarzadeh et al 2014), ozonolisis (Kodama et al 2003) dan pengoksidaan fotopemeka (Ibrahim 1994).…”