## Abstract The effect of degree of polymerization (DP) on the gelation and flow processability of poly(vinyl chloride) (PVC) was studied. Sheets with adjusted degree of gelation were prepared by rolling rigid pipe formulation suspension PVC compounds with DPs of 800, 1050 and 1300 by changing the
Nonaqueous polymerization of vinyl chloride: An environmentally friendly process
โ Scribed by S. Georgiadou; N. L. Thomas; M. Gilbert; B. W. Brooks
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 446 KB
- Volume
- 112
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
Abstract
Poly(vinyl chloride) (PVC) is produced via a nonaqueous polymerization process in which hexane is used as a diluent. This nonaqueous process can lead to significant energy savings, significant reductions in carbon dioxide emissions, and the elimination of wastewater. Various suspending agents have been used to evaluate their effects on the shape and morphology of PVC grains. The nonaqueous process leads to the formation of PVC grains with higher porosity than that of typical suspension PVC. The bulk density is slightly lower than that of suspension PVC, but the thermal stability seems to be similar. ยฉ 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
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## Abstract Linear and branched poly(butylene adipate)s (PBA) with molecular weights ranging from 2000 to 10,000 g/mol, and a branching agent content between 0 and 1.8%, were solution cast with poly(vinyl chloride) (PVC) to form 50โ to 60โฮผm thick flexible films. Dry films were analyzed by tensile
## Abstract The heterogeneous polymerization of vinyl chloride monomer (VCM), with __n__โbutane as the reaction medium, was used to prepare poly(vinyl chloride) (PVC) resins. The particle features of the resulting resins and the particle formation mechanism of the polymerization process were invest