TY - JOUR
T1 - Analysis of the interaction between rubber polymer and carbon black surfaces by efficient removal of physisorbed polymer from carbon-rubber composites
AU - Hoshikawa, Yasuto
AU - An, Baigang
AU - Kashihara, Susumu
AU - Ishii, Takafumi
AU - Ando, Mariko
AU - Fujisawa, Syuji
AU - Hayakawa, Koutarou
AU - Hamatani, Satoshi
AU - Yamada, Hiroshi
AU - Kyotani, Takashi
N1 - Funding Information:
This research was partially supported by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) Grant-in-Aid for Scientific Research (C) Grant Number 26420672 , Japan.
Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - The purpose of the present study is to provide insight into the structure of "bound rubber", which is responsible for the reinforcing effect of carbon black (CB) in a rubber composite. When styrene-butadiene rubber (SBR)-CB composites were treated with toluene at a high temperature (150 °C) in an autoclave (AC) vessel, it was found that the AC treatment extracted a much larger amount of physisorbed rubber than the conventional Soxhlet extraction. Moreover, the pulsed 1H NMR technique reveals that the AC treatment can extract almost all of "loosely bound rubber" but leave "tightly bound rubber". An attempt was then made to correlate the amount of tightly bound rubber with the carbon surface chemistry in CB. As a result, a good linear relationship was found between the amount of tightly bound rubber and the hydrogen content of CB among four SBR composites with different types of CBs. Based on the above linear relationship, the origin of the tightly bound rubber is discussed in terms of the nature of the interaction (chemical and physical) between the rubber polymer chains and the CB surface.
AB - The purpose of the present study is to provide insight into the structure of "bound rubber", which is responsible for the reinforcing effect of carbon black (CB) in a rubber composite. When styrene-butadiene rubber (SBR)-CB composites were treated with toluene at a high temperature (150 °C) in an autoclave (AC) vessel, it was found that the AC treatment extracted a much larger amount of physisorbed rubber than the conventional Soxhlet extraction. Moreover, the pulsed 1H NMR technique reveals that the AC treatment can extract almost all of "loosely bound rubber" but leave "tightly bound rubber". An attempt was then made to correlate the amount of tightly bound rubber with the carbon surface chemistry in CB. As a result, a good linear relationship was found between the amount of tightly bound rubber and the hydrogen content of CB among four SBR composites with different types of CBs. Based on the above linear relationship, the origin of the tightly bound rubber is discussed in terms of the nature of the interaction (chemical and physical) between the rubber polymer chains and the CB surface.
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U2 - 10.1016/j.carbon.2015.12.003
DO - 10.1016/j.carbon.2015.12.003
M3 - Article
AN - SCOPUS:84959357712
VL - 99
SP - 148
EP - 156
JO - Carbon
JF - Carbon
SN - 0008-6223
ER -