Kinetics of poly(propylene fumarate)synthesis by step polymerization of diethyl fumarate and propylene glycol using zinc chloride as a catalyst (Record no. 43582)
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| fixed length control field | 01873nam a2200277Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625140610.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-9332 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Kinetics of poly(propylene fumarate)synthesis by step polymerization of diethyl fumarate and propylene glycol using zinc chloride as a catalyst |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | J. Biomater. Sci. Polymer Ed., 13(1), p.95-108, 2002 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Diethyl fumarate and propylene glycol were reacted in the presence of a zinc chloride catalyst to synthesize poly(propylene fumarate)(PPF)over a period of 12 hours. The kinetics of the transesteri. cation polymerization at 130±C, 150±C, and 200 ±C were determined by gel permeation chromatography (GPC)analysis. The initial rate of polymerization at each temperature was quanti. ed by calculating the rate of change of the number average molecular weight (Mn). At 200 ±C, gelation of the PPF occurred after 4 h. GPC analysis of the reaction showed that PPF synthesized at 150±C had a higher . nalMn of 4600 (§190)and a higher weight average molecular weight of 10 500 (§760)than at 130 ±C (n D 3). The chemical structure of the PPF was veri. ed by NMR and FT-IR analysis. This study demonstrated that the maximum Mn of PPF by a transesteri. cation reaction is limited due to gelation of PPF at high temperature. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | POLY(PROPYLENE FUMARATE) |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | STEP POLYMERIZATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | KINETICS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | TRANSESTERICATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | UNSATURATED POLYESTERS |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Shung, A.K. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Timmer, M.D. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Jo, S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Engel, P.S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mikos, A.G. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/13qN9F_zon5MHfptLjAHBXJK2-kIuA41L/view?usp=drivesdk">https://drive.google.com/file/d/13qN9F_zon5MHfptLjAHBXJK2-kIuA41L/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-9332 | 25.06.2025 | 25.06.2025 | Documentos solicitados |