ISSN:
1435-1536
Keywords:
Super-high molecular weight polyethylene
;
melting
;
DSC analyses
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The melting of nascent and thermally treated super-high molecular weight polyethylene (SHMWPE) is investigated by means of differential scanning calorimetry (DSC). Higher melting temperatures and enthalpies of the nascent and annealed samples are observed. The melting temperatures and enthalpies of melt crystallized SHMWPE is lower and depends on the temperature of thermal treatment. All melting properties are explained by presuming that the lamellar structure contains a high concentration of entangled tie macromolecules in amorphous regions formed during polymerization. It was supposed that the concentration of the entanglements and the stressed tie molecules are changed with the temperature of the thermal pretreatment.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01412241
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