Cationic copolymerization of 1,3-pentadiene with α-pinene
-
Ai-Yuan Li
,
Hui-Bo Zhang
Abstract
The cationic copolymerization of 1,3-pentadiene (PD) with α-pinene (AP) initiated by aluminum trichloride (AlCl3) was carried out in N-pentane solvent. The effects of the polymerization temperature and the comonomer composition on the yield of the copolymer, softening point, Gardner color scale and number-average molecular weight (Mn) are discussed. The performance of the copolymer was better than that of AP homopolymer (PAP) and PD homopolymer (PPD). The structure of the copolymer was characterized by Fourier transform infrared spectroscopy (FT-IR), 1H-nuclear magnetic resonance (1H-NMR), 13C-NMR, differential scanning calorimetry (DSC) and gel permeation chromatography (GPC). In addition, the reactivity ratios for AP (M1) and PD (M2) determined by the Kelen-Tudos method from low-conversion data are r1=0.58 and r2=5.92, respectively.
Acknowledgments
This work was supported by the Ningbo Natural Science Foundation (2010A610194).
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©2014 by De Gruyter
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Articles in the same Issue
- Frontmatter
- Editorial
- Editorial improvements at the Journal of Polymer Engineering
- Original articles
- Cationic copolymerization of 1,3-pentadiene with α-pinene
- In vitro degradation of polyglycolic acid synthesized by a one-step reaction
- Synthesis of a novel class of mixed-type surfmers and their properties in water
- Unique viscosity mutation of multi-generation hyperbranched waterborne polyurethane
- Preparation and characterization of oxidized starch-graft-poly(styrene-butyl acrylate) latex via emulsion polymerization
- Peroxide vulcanization of natural rubber. Part I: effect of temperature and peroxide concentration
- The stimuli-response characters of hydrogels prepared using ultrasound
- A new conductometric biosensor based on horseradish peroxidase immobilized on chitosan and chitosan/gold nanoparticle films
- A new approach for the development of textile waste cotton reinforced composites (T-FRP): laminated hybridization vs. coupling agents
- Effects of the surface treatment of wollastonite on the tensile and flow properties for reinforced polypropylene composites
- Effect of the quenching temperature on the mechanical and thermophysical properties of polycarbonate pigmented with titanium dioxide
- Processing and characterization of poly(lactic acid) blended with polycarbonate and chain extender
- Characteristics analysis and mold design for ultrasonic-assisted injection molding
