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SYNTHESIS AND PHOTOSTABILITY OF NEW POLYMERS DERIVED FROM PVC

 

Marketed By :  LAP LAMBERT Academic Publishing   Sold By :  Kamal Books International  
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  • Product Description
 

The influence of introducing 1,3,4-thiadiazole and phthalyl groups as a pending groups into the repeating unit of PVC has been studied on the bases of photostability measurements. The photostability of modified. polymers were studied by monitoring the carbonyl Index, polyene index and hydroxyl index, All results obtained indicated that PI, PII, PIII, PIV and PV gave lower growth rate of ICO, IPO and IOH with irradiation time with respect to unmodified PVC film (control). The following trends of photostability are obtained PI>PII>PIII>PIV>PV According to the experimental results several reaction mechanisms were proposed depending on the presence of 1,3,4-thiadiazole and phthalyl groups moieties in the polymer chain. The mode of chain scission was also investigated by measuring the variation of average viscosity molecular weight with irradiation time for modified PVC. The degree of deterioration (?) and the average number of chain scission (S) values were also calculated.

Product Specifications
SKU :COC98365
AuthorNoora Asaad,Emad Yousif and Ayad Hameed
LanguageEnglish
BindingPaperback
Number of Pages108
Publishing Year2011-01-04T00:00:00.000
ISBN978-3843390286
Edition1 st
Book TypeOrganic chemistry
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-08-18 00:00:00