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Browsing by Author "Garry L. Rempel"

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AQUEOUS-PHASE HYDROGENATION OF NANOSIZED POLYISOPRENE EMULSION AND NATURAL RUBBER LATEX USING RHODIUM CATALYSTS

Pornlert Piya-areetham (Chulalongkorn University, 2013)

A water-soluble rhodium catalyst is an efficient catalyst for hydrogenation of unsaturated polymers in the absence of organic solvent. Natural rubber (NR) latex and nanosized polyisoprene (PIP) emulsion were hydrogenated ...
Hydrogenation of CIS-1-4-poly(isoprene) nad natural rubber catalyzed by OsHCI(CO)(O2(PCY3)2 and [Ir(COD)py(PCY3)]PF6

Kitikorn Charmondusit (Chulalongkorn University, 2001)

งานวิจัยนี้เป็นการศึกษาโฮโมจีเนียสไฮโดรจิเนชันของซีส-1, 4-พอลิไอโซพรีนโดยใช้ตัวเร่งปฏิกิริยา OsHCI(CO)(O2)(PCy3)2 หรือ [lr(COD)py(PCy3)]PF6 องค์ประกอบทางเคมีของผลิตภัณฑ์ตรวจสอบด้วยเทคนิคคาร์บอนนิวเคลียร์แมกเนติกเรโซแนนซ์ ...
MODIFICATION OF DEPROTEINIZED NATURAL RUBBER BY GRAFTING WITH MALEIC ANHYDRIDE VIA DIFFERENTIAL MICROEMULSION POLYMERIZATION TECHNIQUE

Pinyo Wongthong (Chulalongkorn University, 2014)

This work involves a novel technical route for synthesizing graft copolymers of maleic anhydride (MA) onto natural rubber (NR). To improve the grafting efficiency (G.E) and reduce gel content in the grafts, deproteinizing ...
POLYMERIZATION OF 1,3-BUTADIENE USING Co/Nd AND Ni/Nd CATALYSTS

Chansuree Chatarsa (Chulalongkorn University, 2014)

Commercial butadiene rubber (BR) synthesized from 1,3-butadiene (BD) polymerization using neodymium (Nd)-based Ziegler-Natta catalyst coordinated with alkylaluminium halides as co-catalysts contains 97-99 % cis-1,4 ...
SYNTHESIS OF POLYSTYRENE/SiO2 AND POLYISOPRENE/SiO2 NANOPARTICLES VIA RAFT EMULSION POLYMERIZATION

Dusadee Tumnantong (Chulalongkorn University, 2016)

Polystyrene-silica (PS-co-RAFT-SiO2) and polyisoprene-silica (PIP-co-RAFT-SiO2) nanoparticles were synthesized via reversible addition-fragmentation chain-transfer (RAFT) emulsifier-free emulsion polymerization. The ...
SYNTHESIS OF STYRENE BUTADIENE COPOLYMER/SiO2 AND POLYBUTADIENE/SiO2 NANOPARTICLES VIA DIFFERENTIAL MICROEMULSION POLYMERIZATION

Thanyaporn Tancharernrat (Chulalongkorn University, 2014)

Differential microemulsion polymerization (DMP) was selected for synthesis of styrene butadiene copolymer (SBR)-SiO2, polybutadiene (PB)-SiO2 and polystyrene (PS)-SiO2 nanoparticles. The core-shell structure was designed ...

Now showing items 1-6 of 6

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