Syndiotactic 1,2‐polybutadiene with Co‐CS2 catalyst system. I. Preparation, properties, and application of highly crystalline syndiotactic 1,2‐polybutadiene
- 1 June 1983
- journal article
- research article
- Published by Wiley in Journal of Polymer Science: Polymer Chemistry Edition
- Vol. 21 (6) , 1853-1860
- https://doi.org/10.1002/pol.1983.170210625
Abstract
Highly crystalline syndiotactic 1,2‐polybutadiene (s‐PB) having melting point (mp) up to 216°C was obtained by using a Co(acac)3‐AIEt3‐CS2 catalyst. The polymer with mp 208°C was found to have 99.7% 1,2 content and 99.6% syndiotacticity by 1H and 13C‐NMR measurements. The s‐PB can be molded by addition of a stabilizer such as 2,6‐di‐t‐butyl‐4‐hydroxymethylphenol into fiber, film, and various shaped articles. The physical properties presented in the present article include stress‐strain and dynamic mechanical behavior. The highly crystalline syndiotactic 1,2‐polybutadiene was applied to a carbon fiber and UBEPOL VCR (cis‐1,4‐polybutadiene reinforced by fibrous syndiotactic 1,2‐polybutadiene).Keywords
This publication has 18 references indexed in Scilit:
- Molecular weight distribution and stereoregularity of polypropylenes produced with VCl4–AlEt2Cl catalystJournal of Polymer Science: Polymer Chemistry Edition, 1975
- Zur struktur des polybutadiens, 2. Das 13C‐NMR‐Spektrum des 1,2‐polybutadiensDie Makromolekulare Chemie, 1974
- Carbon‐13 NMR of polybutadieneJournal of Polymer Science Part A-1: Polymer Chemistry, 1972
- A Classification of Polymerizations from a Kinetic Point of ViewBulletin of the Chemical Society of Japan, 1967
- Mechanism of stereoregular polymerization of butadiene by homogeneous Ziegler‐Natta catalysts. I. Effects of the species of transition metalsJournal of Polymer Science Part A-1: Polymer Chemistry, 1967
- Transferability of valence force constants from “overlay” calculations: Molecular vibrations of syndiotactic 1,2-polybutadieneSpectrochimica Acta, 1966
- Stereoregular Polymerization of Butadiene with Alkylaluminum Chlorides and Cobalt OctoateI&EC Product Research and Development, 1965
- Polymerization of Butadiene with Alkylaluminum and Cobalt ChlorideI&EC Product Research and Development, 1962
- Influence of donor‐type impurities on the polymerization of propylene catalyzed by a titanium trichloride‐triethylaluminum systemJournal of Polymer Science, 1961
- The structure of crystalline 1,2‐polybutadiene and of other “syndyotactic polymers”Journal of Polymer Science, 1956