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Assessment of relationships between drilling rate index and mechanical properties of rocks

✍ Scribed by Yarali, Olgay; Soyer, Eren

Book ID
118502134
Publisher
Elsevier Science
Year
2013
Tongue
English
Weight
635 KB
Volume
33
Category
Article
ISSN
0886-7798

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New segmented polyureas were prepared from 4,4 -diisocyanato dicyclohexylmethane and amino terminated polyoxypropylene. Different cycloaliphatic and aromatic diamines were used as chain extenders as well as to synthesize the corresponding model hard segments (HSs). The competition between polyconden