Results 31 to 40 of about 891 (145)

The role of non-rubber components acting as endogenous antioxidants on thermal-oxidative aging behavior of natural rubber

Polymer Testing, 2022
Natural rubber (NR) with complex compositions has more excellent thermo-oxidative resistance properties compared to synthetic high cis-1,4-polyisoprene (IR), although synthetic IR owns similar molecular chain structure to NR.
Yan-Chan Wei, Wen-Yi Xie, Meng-Fan He, Ding Zhu, Shuang Liu, Ling Zhang, Shuangquan Liao   +6 more
doaj   +1 more source

Alergia ao látex [PDF]

Revista Brasileira de Anestesiologia, 2003
JUSTIFICATIVA E OBJETIVOS: O látex, (cis 1,4 polyisoprene) está muito presente no dia-a-dia do anestesiologista. Os primeiros relatos de alergia ao látex datam de 1933. A sensibilidade ao látex na população de anestesiologistas é de 12,5% a 15,8%.
Jorge Barrios Allarcon, Maurício Malito, Herman Linde, Marcos Euder Mendonça Brito   +3 more
doaj   +1 more source

Relaxation in homogeneous and non-homogeneous polarized systems. A mesoscopic entropy approach

, 2010
The dynamics of a degree of freedom associated to an axial vector in contact with a heat bath is decribed by means of a probability distribution function obeying a Fokker-Planck equation.
Adachi, Barrera, Block, Coffey, de Gennes, Debye, Doi, Déjardin, Déjardin, Gadomski, Groot, Gyarmati, Hansen, Hernández, Híjar, I. Santamaría-Holek, J.G. Méndez-Bermúdez, Jackson, Kröger, Kröger, Málaga, Onsager, Osawa, Reguera, Rubi, Rubi, Ullman, Waldron, Yin, Zwanzig   +29 more
core   +1 more source

Thermoplastic Elastomers [PDF]

, 2021
Thermoplastic elastomers (TPEs), commonly known as thermoplastic rubbers, are a category of copolymers having thermoplastic and elastomeric characteristics. A TPE is a rubbery material with properties very close to those of conventional vulcanized rubber

core   +1 more source

Efficient Degradation of Cis-Polyisoprene by GQDs/g-C₃N₄ Nanoparticles Under UV Light Irradiation

Organics
Rubber material with high elasticity and viscoelasticity has become the most widely used universal material, and the study of the aging failure mechanism of rubber has been meaningful research in the polymer materials field. Cis-polyisoprene was employed
Cilong Chen, Jinrui Liu, Bangsen Li, Dashuai Zhang, Peisong Zhang, Jianjun Shi, Zaifeng Shi   +6 more
doaj   +1 more source

Luminescent Lanthanide Metal Organic Frameworks for cis-Selective Isoprene Polymerization Catalysis

Inorganics, 2015
In this study, we are combining two areas of chemistry; solid-state coordination polymers (or Metal-Organic Framework—MOF) and polymerization catalysis.
Samantha Russell, Thierry Loiseau, Christophe Volkringer, Marc Visseaux   +3 more
doaj   +1 more source

Nickel and cobalt ilmenites-based catalysts for upgrading pyrolytic oil during pyrolysis ofwaste tires [PDF]

, 2023
Pyrolysis as a waste treatment method has gained relevance because it can generate higher value-added products in addition to reducing the environment’s secondary pollution. In this study, the catalytic pyrolysis of waste tires was evaluated using NiTiO3
Arteaga Perez, Luis E., Campos, Cristian H., Casella, Mónica Laura, Correa Muriel, Daniela, Cortes Hernández, Héctor, González Vera, Daniela, Herrera, Javiera, Osorio Vargas, Paula, Valencia Sánchez, Hoover   +8 more
core  

The Calcium Sensor Calcineurin B-Like Proteins -Calcineurin B-Like Interacting Protein Kinases Is Involved in Leaf Development and Stress Responses Related to Latex Flow in Hevea brasiliensis

Frontiers in Plant Science, 2022
Latex flow in Hevea brasiliensis (the Para rubber tree), the sole commercial source of natural rubber (cis-1,4-polyisoprene, NR), renders it uniquely suited for the study of plant stress responses.
Xiaohu Xiao, Chunyan Mo, Chunyan Mo, Jinlei Sui, Xianzu Lin, Xianzu Lin, Xiangyu Long, Yunxia Qin, Yongjun Fang, Chaorong Tang, Chaorong Tang   +10 more
doaj   +1 more source

Production of functionalized oligo‐isoprenoids by enzymatic cleavage of rubber

Microbial Biotechnology, 2017
Summary In this study, we show the proof of concept for the production of defined oligo‐isoprenoids with terminal functional groups that can be used as starting materials for various purposes including the synthesis of isoprenoid‐based plastics.
Wolf Röther, Jakob Birke, Stephanie Grond, Jose Manuel Beltran, Dieter Jendrossek   +4 more
doaj   +1 more source

Construction of Pará rubber tree genome and multi-transcriptome database accelerates rubber researches

BMC Genomics, 2018
Background Natural rubber is an economically important material. Currently the Pará rubber tree, Hevea brasiliensis is the main commercial source. Little is known about rubber biosynthesis at the molecular level.
Yuko Makita, Mika Kawashima, Nyok Sean Lau, Ahmad Sofiman Othman, Minami Matsui   +4 more
doaj   +1 more source