Preliminary study on the preparation of latex foam rubber from graft copolymer of deproteinised natural rubber and methyl methacrylate (Record no. 65533)

MARC details
000 -LEADER
fixed length control field 01529nam a2200217Ia 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Nakason C
245 #0 - TITLE STATEMENT
Title Preliminary study on the preparation of latex foam rubber from graft copolymer of deproteinised natural rubber and methyl methacrylate
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher Journal of Rubber Research
Year of publication 2001
300 ## - PHYSICAL DESCRIPTION
Number of Pages 141-152
520 ## - SUMMARY, ETC.
Summary, etc Deproteinised natural rubber (DPNR) latex was prepareed by incubation of fresh field natural rubber latex with a proteolytic enzyme in the presence of an emulsifier. The nitrogen content was decreased from 0.9;(in the fresh field natural rubber letex) to 0.07;(in the DPNR). A graft copolymer of the deproteinised natural rubber latex and poly(methyl methacrylate) as a redox initiator. The presence of grafted PMMA in the natural rubber molecules was confirmed using FTIR. Intense absorption peaks at 1732 cm-1 (-C=0 stretch) and 1140 cm-1 (-C-0 stretch) were observed. It was also found that hardness, compression set and density of the latex foam rubber increased with the increase in the level of graft copolymer in compounding formulation. Furthermmore, at the same blend ratio, the properties increased with the increase in the level of methyl methacrylate used in the grafting reaction.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Deproteinised natural rubber
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term FTIR
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Topical Term Graft copolymer
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Topical Term Latex foam rubber
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Methylacrylate
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Kaesaman A
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Ketsarin K
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Yimwan N
942 ## - ADDED ENTRY ELEMENTS (KOHA)
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