4.1.2.The advent of synthetic rubberFG.Bouchardat:In1879usedisoprene from natural rubber toproduce a rubbery material.- Tilden: By 1884 producedisoprene from turpentine(松节油)and then obtained a rubber-likematerial by methods similar tothose, used by Bouchardat
▪F. G. Bouchardat: In 1879 used isoprene from natural rubber to produce a rubbery material. ▪ Tilden: By 1884 produced isoprene from turpentine(松节油) and then obtained a rubber-like material by methods similar to those, used by Bouchardat. 4.1.2. The advent of synthetic rubber
4.1.2. The advent of synthetic rubber'The early 20th century : theautomobile and pneumatic tyre气胎. natural rubber: from jungle plantsto plantation industrythe first research worki aimed atproducing a rubber synthetically
▪The early 20th century : the automobile and pneumatic tyre气胎. ▪ natural rubber: from jungle plants to plantation industry ▪the first research work: aimed at producing a rubber synthetically. 4.1.2. The advent of synthetic rubber
4.1.2. The advent of synthetic rubberIn 1908 Strange and Graham Ltd :commenced a researchprogramme highly distinguishedchemists, includingFE.MatthewsW. H. Perkin, Jr, and chaimWeizmann
▪In 1908 Strange and Graham Ltd : commenced a research programme highly distinguished chemists, including F. E. Matthews, W. H. Perkin, Jr, and Chaim Weizmann. 4.1.2. The advent of synthetic rubber
4.1.2. The advent of synthetic rubberMatthews:In1910sealedatube containing isoprene andsodium and set it aside.After a month he noted thatthe contents had becomeviscous, and in two months asolid ambercoloured(琥珀色的)rubber
▪Matthews : In 1910 sealed a tube containing isoprene and sodium and set it aside. After a month he noted that the contents had become viscous, and in two months a solid ambercoloured(琥珀色的) rubber. 4.1.2. The advent of synthetic rubber
4.1.2. The advent of synthetic rubber-C. Harries: discovery of sodium-catalysed polymerization of isoprene1911 the Bayer Company produceda few tonnes of Methyl Rubber (poly-2,3-dimethylbutadiene)
▪C. Harries: discovery of sodiumcatalysed polymerization of isoprene. ▪1911 the Bayer Company produced a few tonnes of Methyl Rubber (poly- 2,3-dimethylbutadiene) 4.1.2. The advent of synthetic rubber