Preparation and characterization of natural rubber with soft nanomatrix structure

Kenichiro Kosugi; Ratchaniwan Sutthangkul; Oraphin Chaikumpollert; Yoshimasa Yamamoto; Jitladda Sakdapipanich; Yoshinobu Isono; Seiichi Kawahara

doi:10.1007/s00396-012-2703-1

Preparation and characterization of natural rubber with soft nanomatrix structure

Kenichiro Kosugi
, Ratchaniwan Sutthangkul
, Oraphin Chaikumpollert
, Yoshimasa Yamamoto
, Jitladda Sakdapipanich
, Yoshinobu Isono
, Seiichi Kawahara

Department of Chemistry

Nagaoka University of Technology
Mahidol University
Thailand Science Park
Tokyo National College of Technology

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Abstract Preparation of natural rubber (NR) with a soft nanomatrix structure was made by graft-copolymerization of butyl acrylate (BA) onto deproteinized natural rubber with tert-butyl hydroperoxide/tetraetylenepentamine in latex stage. The resulting graft-copolymer of deproteinized natural rubber and poly (butyl acrylate) (DPNR-graft-PBA) was characterized by Fourier-transforminfrared spectroscopy. Conversion and grafting efficiency of BA were dependent upon BA concentration, which were more than 90 mol% under a suitable condition of the graft-copolymerization. Morphology of DPNR-graft-PBA was observed by transmission electron microscopy after staining film specimens with I2 vapor for 5min. TheNR particles of about 0.5 μm in diameter were dispersed in PBA matrix of about 15 nm in thickness. Storage modulus and loss tangent of DPNR-graft-PBA were measured, and they were related with the soft nanomatrix structure. The tensile strength and elongation at break decreased as monomer concentration increased.

Original language	English
Pages (from-to)	1457-1462
Number of pages	6
Journal	Colloid and Polymer Science
Volume	290
Issue number	14
DOIs	https://doi.org/10.1007/s00396-012-2703-1
Publication status	Published - Sept 2012

Keywords

Butyl acrylate
Graftcopolymerization
Nanomatrix structure
Natural rubber

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10.1007/s00396-012-2703-1

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title = "Preparation and characterization of natural rubber with soft nanomatrix structure",

abstract = "Abstract Preparation of natural rubber (NR) with a soft nanomatrix structure was made by graft-copolymerization of butyl acrylate (BA) onto deproteinized natural rubber with tert-butyl hydroperoxide/tetraetylenepentamine in latex stage. The resulting graft-copolymer of deproteinized natural rubber and poly (butyl acrylate) (DPNR-graft-PBA) was characterized by Fourier-transforminfrared spectroscopy. Conversion and grafting efficiency of BA were dependent upon BA concentration, which were more than 90 mol\% under a suitable condition of the graft-copolymerization. Morphology of DPNR-graft-PBA was observed by transmission electron microscopy after staining film specimens with I2 vapor for 5min. TheNR particles of about 0.5 μm in diameter were dispersed in PBA matrix of about 15 nm in thickness. Storage modulus and loss tangent of DPNR-graft-PBA were measured, and they were related with the soft nanomatrix structure. The tensile strength and elongation at break decreased as monomer concentration increased.",

keywords = "Butyl acrylate, Graftcopolymerization, Nanomatrix structure, Natural rubber",

author = "Kenichiro Kosugi and Ratchaniwan Sutthangkul and Oraphin Chaikumpollert and Yoshimasa Yamamoto and Jitladda Sakdapipanich and Yoshinobu Isono and Seiichi Kawahara",

year = "2012",

month = sep,

doi = "10.1007/s00396-012-2703-1",

language = "English",

volume = "290",

pages = "1457--1462",

journal = "Colloid and Polymer Science",

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T1 - Preparation and characterization of natural rubber with soft nanomatrix structure

AU - Kosugi, Kenichiro

AU - Sutthangkul, Ratchaniwan

AU - Chaikumpollert, Oraphin

AU - Yamamoto, Yoshimasa

AU - Sakdapipanich, Jitladda

AU - Isono, Yoshinobu

AU - Kawahara, Seiichi

PY - 2012/9

Y1 - 2012/9

N2 - Abstract Preparation of natural rubber (NR) with a soft nanomatrix structure was made by graft-copolymerization of butyl acrylate (BA) onto deproteinized natural rubber with tert-butyl hydroperoxide/tetraetylenepentamine in latex stage. The resulting graft-copolymer of deproteinized natural rubber and poly (butyl acrylate) (DPNR-graft-PBA) was characterized by Fourier-transforminfrared spectroscopy. Conversion and grafting efficiency of BA were dependent upon BA concentration, which were more than 90 mol% under a suitable condition of the graft-copolymerization. Morphology of DPNR-graft-PBA was observed by transmission electron microscopy after staining film specimens with I2 vapor for 5min. TheNR particles of about 0.5 μm in diameter were dispersed in PBA matrix of about 15 nm in thickness. Storage modulus and loss tangent of DPNR-graft-PBA were measured, and they were related with the soft nanomatrix structure. The tensile strength and elongation at break decreased as monomer concentration increased.

AB - Abstract Preparation of natural rubber (NR) with a soft nanomatrix structure was made by graft-copolymerization of butyl acrylate (BA) onto deproteinized natural rubber with tert-butyl hydroperoxide/tetraetylenepentamine in latex stage. The resulting graft-copolymer of deproteinized natural rubber and poly (butyl acrylate) (DPNR-graft-PBA) was characterized by Fourier-transforminfrared spectroscopy. Conversion and grafting efficiency of BA were dependent upon BA concentration, which were more than 90 mol% under a suitable condition of the graft-copolymerization. Morphology of DPNR-graft-PBA was observed by transmission electron microscopy after staining film specimens with I2 vapor for 5min. TheNR particles of about 0.5 μm in diameter were dispersed in PBA matrix of about 15 nm in thickness. Storage modulus and loss tangent of DPNR-graft-PBA were measured, and they were related with the soft nanomatrix structure. The tensile strength and elongation at break decreased as monomer concentration increased.

KW - Butyl acrylate

KW - Graftcopolymerization

KW - Nanomatrix structure

KW - Natural rubber

UR - https://www.scopus.com/pages/publications/85027924586

U2 - 10.1007/s00396-012-2703-1

DO - 10.1007/s00396-012-2703-1

M3 - Article

AN - SCOPUS:85027924586

SN - 0303-402X

VL - 290

SP - 1457

EP - 1462

JO - Colloid and Polymer Science

JF - Colloid and Polymer Science

IS - 14

ER -

Preparation and characterization of natural rubber with soft nanomatrix structure

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Keywords

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