Pyrolysis-Gas Chromatographic Investigation on the Structure of Chlorinated Poly(vinyl chlorides)

Tsuge, Shin; Okumoto, Tadaoki; Takeuchi, Tsugio

doi:10.1021/ma60009a013

Cited by 36 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the distributed activation energy model (DAEM) is incorporated . The existence of the hindrance effect has been further supported by pyrolysis chromatography result of CPVC product with graded chlorine contents both from our experiments and from literature, which is presented in Appendix A …”

Section: Mathematical Modelsupporting

confidence: 59%

Experimental study and modeling of UV‐enhanced PVC chlorination to CPVC using a gas–solid process

Bai

Yang

et al. 2014

AIChE Journal

View full text Add to dashboard Cite

Experiments were carried out in a vibrated fluidized bed to investigate the dynamic process of UV-enhanced synthesis of chlorinated polyvinyl chloride (PVC) using a gas-solid method, where a UV-Vis online analysis system was used to record the kinetics of chlorination. Meanwhile, a comprehensive mathematical model incorporating the distributed activation energy model was established to describe the hindrance effect of Cl atoms already inserted on the PVC polymer chain on the later insertion during the chlorination process. Each of the hypotheses in the model was validated by the well-designed experiments, and the model predictions matched well with the experimental data under various operating conditions. Sensitivity analyses of three primary operating parameters, that is, temperature, chlorine concentration, and UV intensity, were made for better understanding of the mechanism of PVC chlorination. It is anticipated that the modeling methodology in this work would be also suitable for similar gas-solid reaction systems.

show abstract

Section: Mathematical Modelsupporting

confidence: 59%

Experimental study and modeling of UV‐enhanced PVC chlorination to CPVC using a gas–solid process

Bai

Yang

et al. 2014

AIChE Journal

View full text Add to dashboard Cite

show abstract

“…Py‐GC‐MS was employed to characterize the chlorine distribution of CPVC polymer chains. This method was firstly proposed by Tsuge et al in 1960s, in which they pointed out that the position of substituted chlorine elements on polymer chains can be investigated by analyzing the pyrolysis products of CPVC samples based on the pyrolysis mechanism shown in Figure …”

Section: Resultsmentioning

confidence: 99%

Plasma‐Assisted Synthesis of Chlorinated Polyvinyl Chloride (CPVC) Using a Plasma Circulating Fluidized Bed Reactor (PCFBR)

Yang

Mao

et al. 2015

Plasma Processes & Polymers

View full text Add to dashboard Cite

A novel gas‐solid method to synthesize chlorinated polyvinyl chloride (CPVC) is realized using a plasma circulating fluidized bed reactor (PCFBR), which decouples the plasma‐assisted chlorination process into two steps i) the fast step for chlorination activation in the riser; ii) the slow step for gas‐solid chlorination and chlorine migration inside particles in the accompanying bed. Experiments are carried out to investigate the influences of different parameters on the chlorination process. The synthesized CPVC has the chlorine content at about 67.5 wt% with the glass transition temperature of 130.4 °C. The characterization results by Raman Spectra, Py‐GC‐MS and solid‐state 13C‐NMR prove that the products have homogeneous chlorine distribution and low content of defect structure in.

show abstract

“…Conversion of tetrabutylammonium salts to the butyl esters by pyrolysis was also reported (599), as was transformation of quaternary ammonium compounds into their volatile dimethyl amino derivatives by pyrolysis on a flash-heating ribbon (646). The distribution of chlorine atoms in chlorinated poly (vinyl chlorides) was studied for partially chlorinated polymers by pyrolysis-GC (681). Reaction GC.…”

Section: Quantitative Analysis and Instrumentation Interfacingmentioning

confidence: 91%

Gas chromatography

Juvet¹,

Cram²

1970

Anal. Chem.

View full text Add to dashboard Cite

Pyrolysis-Gas Chromatographic Investigation on the Structure of Chlorinated Poly(vinyl chlorides)

Cited by 36 publications

References 1 publication

Experimental study and modeling of UV‐enhanced PVC chlorination to CPVC using a gas–solid process

Experimental study and modeling of UV‐enhanced PVC chlorination to CPVC using a gas–solid process

Plasma‐Assisted Synthesis of Chlorinated Polyvinyl Chloride (CPVC) Using a Plasma Circulating Fluidized Bed Reactor (PCFBR)

Gas chromatography

Contact Info

Product

Resources

About