Graft copolymers of polysaccharides with thermoplastic polymers. A new type of filled plastic (Record no. 40957)
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| fixed length control field | 02241nam a2200217Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625124646.0 |
| 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-6617 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Graft copolymers of polysaccharides with thermoplastic polymers. A new type of filled plastic |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Polymer Engineering & Science, 17(5), p.311-316, 1977 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | A series of starch graft copolymers and one cellulose graft copolymer were prepared containing 40-50 percent synthetic polymer. The monomers used (styrene, methyl methacrylate, methyl acrylate, and butyl acrylate)were chosen to give grafted synthetic polymers with varying glass transition temperatures (Tg). These graft copolymers were extruded, in the absence of any added thermoplastic homopolymer, to give strong, continuous polysaccharide-filled plastics which are biodegradable and which exhibit little or no die swell. Properties of plastics varied with the Tg of the thermoplastic portion. Starch-g-polystyrene and starch-g-poly(methyl methacrylate)were hard and brittle, while graft copolymers prepared from methyl and butyl acrylate were more flexible and leathery. The graft Uopolymers with lower Tg grafts required less torque and could be extruded at lower temperatures. In the methyl acrylate series, a graft copolymer prepared from gelatinized starch was more easily extruded than one prepared from granular starch, and addition of water produced a water-filled extrudate of excellent quality. The surprising feature of these results is that the matrix polymers, starch and cellulose, are rigid, nonsoftening materials. Grafting of a thermoplastic polymer to these matrix polymers would not be expected to give an extrudable product. The results are explained as powder flow followed by fusion or sintering of the graft polymers under the temperature and pressure conditions in the die. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Bagley, E. B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Fanta,G. F. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Burr, R. C. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Doane, W. M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Russell, C. R. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1v6fad0OoUNk4mmgvjYQorkyXQFlM3RHi/view?usp=drivesdk">https://drive.google.com/file/d/1v6fad0OoUNk4mmgvjYQorkyXQFlM3RHi/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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-6617 | 25.06.2025 | 25.06.2025 | Documentos solicitados |