@article{oai:soar-ir.repo.nii.ac.jp:00012394, author = {Kosuda, Takashi and Okada, Tomohiko and Nozaka, Shogo and Matsuzawa, Yukitaka and Shimizu, Takuya and Hamanaka, Senji and Mishima, Shozi}, issue = {4}, journal = {POLYMER DEGRADATION AND STABILITY}, month = {Apr}, note = {Characteristics of low temperature (473 K) dehydrochlorination of PVC powder in the presence of ZnO were studied in nitrogen flow and a reaction mechanism was proposed. It was revealed that a large portion of chlorine (ca. 70%) in PVC powder reacts with ZnO accompanying evolution of water and a slight amount of HCl (ca. 0.5%) without any organic gas. Analysis of the solid product by SEM, XRD and IR suggested that an apparent solid-solid reaction proceeds at 473 K via formation of a liquid phase which acts as reaction promoter and that the solid product is abundant in aliphatic (CH)(n) polymer. It was concluded that the first step of the dehydrochlorination is cross-linking C-C single bond formation in a polymer chain or among polymer chains followed by isomerization to polyene and aromatics., Article, POLYMER DEGRADATION AND STABILITY. 97(4):584-591 (2012)}, pages = {584--591}, title = {Characteristics and mechanism of low temperature dehydrochlorination of poly(vinyl chloride) in the presence of zinc(II) oxide}, volume = {97}, year = {2012} }