Molecular weight dependence of the melting behavior of poly (?-caprolactone). (Record no. 52583)

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control field MX-MdCICY
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control field 20250625162412.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-18431
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Title Molecular weight dependence of the melting behavior of poly (?-caprolactone).
490 0# - SERIES STATEMENT
Volume/sequential designation Chinese Journal of Polymer Science, 20(1), p.45-51., 2002
520 3# - SUMMARY, ETC.
Summary, etc. Poly(epsilon -caprolactone)(PCL)with different molecular weights was synthesized and characterized by a gel permeation chromatograph equipped with multiple detector. The melting behavior of PCL was also studied. It was found that the equilibrium melting points (T-m(0)) of PCL samples depend on their molecular weights. Wide angle X-ray diffraction measurements (WAXD)and DSC measurements showed that the crystals of the high molecular weight PCLs were more perfect than those of the low molecular weight ones. These results demonstrate that the concentration of the end groups of PCL chains is the main factor that influences the melting behavior. The fusion enthalpy per repeating unit (,,Hu)was determined to be 11.3 kJ/mol for PCL
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element POLY(E-CAPROLACTONE)
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element EQUILIBRIUM MELTING POINT
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element FUSION ENTHALPY
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Huang, Y. P.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Xiang, X.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Luo, X. L.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Ma, D. Z.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1xP7-niZebklzbl3qHoxF9q1bh6Qx-K3e/view?usp=drivesdk">https://drive.google.com/file/d/1xP7-niZebklzbl3qHoxF9q1bh6Qx-K3e/view?usp=drivesdk</a>
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