Organic hybrid of chlorinated polyethylene and hindered phenol. III. Influence of the molecular weight and chlorine content of the polymer on the viscoelastic properties

• Published in: Journal of polymer science. Part B, Polymer physics Vol. 38; no. 22; pp. 2943 - 2953
• Main Authors: Wu, Chifei, Yamagishi, Tada-Aki, Nakamoto, Yoshiaki, Ishida, Shin-Ichiro, Nitta, Koh-Hei
• Format: Journal Article
• Language: English
• Published: New York John Wiley & Sons, Inc 15.11.2000; Wiley
• Subjects: Applied sciences; chlorinated polyethylene; compatibility; damping; Exact sciences and technology; hindered phenol; hydrogen bond; organic hybrid; Organic polymers; Physicochemistry of polymers; Properties and characterization; Rheology and viscoelasticity; viscoelastic property; Chlorinated ethylene polymer; Dynamic mechanical properties; Binary system; Concentration effect; Phenols; Adjuvant; Experimental study; Molecular relaxation; Molecular weight property relation
• ISSN: 0887-6266; 1099-0488
• DOI: 10.1002/1099-0488(20001115)38:22<2943::AID-POLB100>3.0.CO;2-K

The influences of the molecular weight and chlorine content of chlorinated polyethylene (CPE) on the dynamic mechanical propertiesof an organic hybrid consisting of CPE and 3,9‐bis[1,1‐dimethyl‐2{β‐(3‐tert‐butyl‐4‐hydroxy‐5‐methylphenyl)propionyloxy}ethyl]‐2,4,8,10‐tetraoxaspiro[5,5]‐undecane (AO‐80) were investigated. All CPE/AO‐80 hybrids clearly exhibited two kinds of relaxations, and their magnitudes varied according to the molecular weight and chlorine content of CPE. This was due to a change in the ratio of AO‐80 molecules dispersed in the CPE‐rich domain and the AO‐80‐rich domain. A comparison of the jump intensity in differential scanning calorimetry curves with the maximum value of the second tan δ peak demonstrated that the second relaxation was caused by the dissociation of intermolecular hydrogen bonding within the AO‐80‐rich domain. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 2943–2953, 2000