Angewandte Makromolekulare Chemie最新文献

{"title":"Bismaleimide resins. Effect of aliphatic amines on properties","authors":"I. K. Varma, S. Gupta, D. S. Varma","doi":"10.1002/APMC.1987.051530102","DOIUrl":"https://doi.org/10.1002/APMC.1987.051530102","url":null,"abstract":"Bis(p-maleimidophenyl) methane (BM) resin was chain extended by nucleophilic addition with aliphatic diamines having 2,4, or 6 methylene groups (EDA, DAB, HMDA) and diethylene triamine (DETA) and triethylene tetramine (TETA). Chain extension of BM with aliphatic amines significantly reduces the curing temperatures. Increasing the methylene content of the aliphatic amines leads to slight reduction in onset temperatures of curing (∼6°C). Heat of polymerization (ΔH) decreases significantly by chain extension with diamines. Further decrease in ΔH is obtained by the addition of triallylcyanurate (TAC) to the chain extended BM. Thermal stability of cured (180 ± 5°C) resin in nitrogen atmosphere was found to be independent of the methylene content of diamines used for chain extension. Mechanical properties of glass fabric reinforced chain extended BM resins were evaluated. Ageing behaviour of these laminates was investigated at 220 ± 10°C for 500 h and changes in mechanical properties were determined. \u0000 \u0000 \u0000 \u0000Die Ketten von Bis-(p-maleimidophenyl)methanharzen (BM) wurden durch nukleophile Addition von aliphatischen Diaminen mit 2, 4 oder 6 Methylengruppen (EDA, DAB und HMDA) sowie mit Diethylentriamin (DETA) und Triethylentetramin (TETA) verlangert. Diese Kettenverlangerung verursacht eine deutliche Verringerung der Hartungstemperatur. Durch Erhohung der Anzahl der Methylengruppen der aliphatischen Amine wird eine leichte Verringerung der Anfangstemperatur der Hartung um ca. 6°C erreicht. Die Polymerisationswarmen ΔH werden durch die Kettenverlangerung mit Diaminen deutlich verringert. Eine weitere Verringerung von ΔH wird durch die Addition von Triallylcyanurat (TAC) zum kettenverlangerten BM erreicht. Die thermische Stabilitat der geharteten Harze in Stickstoffatmosphare ist von der Lange des aliphatischen Spacers der Amine unabhangig. Die mechanischen Eigenschaften von mit Glasfasermatten verstarkten BM-Harzen sowie das Alterungsverhalten bei 220 ± 10°C wahrend 500 h und die hierdurch bedingten Veranderungen der mechanischen Eigenschaften wurden untersucht.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"23 1","pages":"15-31"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76960843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zur Morphologie von peroxidisch vernetztem Polyethylen","authors":"J. Bongardt, G. Michler, I. Naumann, G. Schulze","doi":"10.1002/APMC.1987.051530104","DOIUrl":"https://doi.org/10.1002/APMC.1987.051530104","url":null,"abstract":"Das Vernetzen von LDPE mittels Peroxiden hat neben einer Abnahme der Kristallinitat eine Veranderung der ubermolekularen Struktur zur Folge. Mit steigender Vernetzung nimmt der Durchmesser der Spharolithe bzw. der garbenformigen uberstrukturen ab. Dieses Ergebnis ist auf eine rucklafige Kristallwachstumsgeschwindigkeit zuruckzufuhren, bedingt durch eine fallende Kristallisationstemperature und einen Anstieg der Schmelzviskositat infolge zunehmender Vernetzungsdichte. Durch die Vernetzung entstehen zusatzliche konstitutionelle Storungen in der PE-Kettenstruktur, wodurch die Abmessungen der Lamellenkristalle und die Grose der Mosaikblocke beeinflust werden. \u0000 \u0000 \u0000 \u0000The crosslinking of LDPE with peroxides results in both reduction of crystallinity and change of the supermolecular structure. The diameter of the spherulites and the sheaf-shaped superstructures decrease with increasing network. This result can be referred to a decreased crystal growth rate due to an increase of the melt viscosity owing to an increasing network density and a decreasing crystallization temperature. Additional constitutional disorder in the PE chain structure arises through crosslinking; this influences the size of the lamellar crystals and the ideally imperfect crystal block.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"155 1","pages":"55-70"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75054316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eine rheo‐optische Apparatur für die Durchführung homogener, einfacher Dehnungen an Polymerschmelzen mit simultaner Aufzeichnung der Deformation, der mechanischen Spannung und der Doppelbrechung","authors":"A. Dinkel, H. U. Hoppler, I. Tomka, G. Vancso","doi":"10.1002/APMC.1987.051530110","DOIUrl":"https://doi.org/10.1002/APMC.1987.051530110","url":null,"abstract":"Es wird uber eine rheo-optische Apparatur zur Verstreckung von Polymerschmelzen mit rotierenden Klemmen berichtet, die mit einer Doppelbrechungs-Meseinrichtung ausgerustet ist. Mit dieser Einrichtung konnen einfache Dehnungen an Polymerschmelzen bis zu hohen Verstreckgraden unter homogenen Bedingungen durchgefuhrt werden. Wahrend des Deformationsvorganges konnen die Spannung, die Doppelbrechung und die Probendicke mit einer Mesrate von 20 Hz, sowie die Probenbreite mit ca. 3 Hz erfast werden. \u0000 \u0000 \u0000 \u0000Wir haben Messungen an Polyisobutylen bei Raumtemperatur mit verschiedenen Dehngeschwindigkeiten (0,01 s−1 < < 1 s−1) bis zu einem Verstreckgrad von λ ≈ 200 durchgefuhrt. Dabei wurden Spannungen bis zu 2 · 106 Pa erhalten. Das spannungsoptische Gesetz war bei homogener Versuchsfuhrung stets erfullt. Es wird gezeigt, das ohne Kontrolle der Dehngeschwindigkeit und insbesondere bei inhomogener Dehung nicht nur Abweichungen vom spannungsoptischen Gesetz, sondern auch grose Fehler bei der Spannungs- bzw. Viskositatsberechnung auftreten. Deshalb wurde groser Wert auf die Prufung der Homogenitat der Dehnung gelegt. \u0000 \u0000 \u0000 \u0000The present paper describes a rheo-optical apparatus consisting of an elongational rheometer (with rotary clamps) and a device to measure birefringence. This equipment was designed to perform homogeneous deformations on polymer melts in the simple elongational mode. Elongational experiments were performed on polyisobutylene samples at room temperature using different strain rates (from 0.01 s−1 to 1 s−1). In typical experiments homogeneous elongations up to λ ≈ 200 and stresses up to 2 · 106 Pa were achieved. The stress, the birefringence, and the deformation were obtained by measuring the force, the sample thickness, the optical retardation (the frequency of the sampling was 20 Hz) and the width of the sample (the frequency of the sampling was 3 Hz). It was found that the stress-optical coefficient was constant. The homogeneity of the deformations was carefully controlled because inhomogeneities cause serious errors in the measurements of elongational viscosity and birefringence.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"10 1","pages":"135-152"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90563051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kernresonanz-untersuchungen an isophorondiisocyanat/diamin und röntgenstrukturanalyse des cis-isophorondiamins","authors":"W. Heyde, W. Hübel, R. Boese","doi":"10.1002/APMC.1987.051530101","DOIUrl":"https://doi.org/10.1002/APMC.1987.051530101","url":null,"abstract":"1-Amino-(3-aminomethyl)-3,5,5-trimethylcyclohexan 1 (IPDA) und 1-Isocyanato-(3-isocyanatomethyl)-3,5,5-trimethylcyclohexan 2 (IPDI), die im technischen Huls-Produkt jeweils im Isomerengemisch mit 25 und 75% (1a, 1b und 2a, 2b) enthalten sind, wurden durch 1-H/13-C-NMR-Spektroskopie in ein- und zweidimensionaler Technik untersucht und die Konfiguration und Konformation festgelegt. Dabei ergab sich fur das zu 75% vorliegende Isomere von IPDA und IPDI eine Sesselkonformation mit cis-Anordnung des equatorialen NCO bzw. NH2 Substituenten und der equatorialen CH2NH2- bzw. CH2NCO-Gruppe. Die Rontgenstrukturanalyse eines bei tiefer Temperatur gezogenen Einkristalls des flussigen Hauptisomeren von IPDA bestatigte die NMR-Befunde (Raumgruppe Pl; Zelldimensionen: a = 5,864(2); b = 8,107(3); c = 11,505(5) A; α = 87,63(3)°; β = 88,85(3)°; γ = 73,34(3)°). \u0000 \u0000 \u0000 \u00001-Amino-(3-aminomethyl)-3,5,5-trimethylcyclohexane 1 (IPDA) and 1-isocyanato-(3-isocyanatomethyl)-3,5,5-trimethylcyclohexane 2 (IPDI) which are present in the technical Huls-product with 25 and 75% have been examined with NMR in one- and two-dimensional techniques and the configuration and conformation has been established. For the major isomer of IPDA and IPDI a chair conformation with cis orientation resulted for the equatorially orientated NH2/NCO and CH2 NH2/CH2NCO substituents. X-ray structure analysis of a single crystal of the main isomer of IPDA, being grown at low temperatures established the NMR-results (spacegroup: Pl, cell dimensions a = 5.864(2), b = 8,107(3), c = 11.505(5) A, α = 87.63(3)°, β = 88.85(3)°, γ = 73.34(3)°).","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"8 1","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78619492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spectroscopic study of gangue of coal and its application as filler in PVC compounds","authors":"G. Xue, Qiang Fu, Jianfu Ding, S. Jiang, Shiying Liu, Y. Xi","doi":"10.1002/APMC.1987.051530106","DOIUrl":"https://doi.org/10.1002/APMC.1987.051530106","url":null,"abstract":"Fillers for PVC compounds have been made from coal gangue. FT-IR studies show that it contains aromatic components with phenolic groups. Application of gangue as a filler in rigid PVC compounds gives rise to materials of good mechanical properties, high heating and chemical resistance, and lower cost. \u0000 \u0000 \u0000 \u0000Aus Kohlegangen wurde Fullmaterial fur PVC-Compounds hergestellt. FT-IR Untersuchungen zeigen, das diese Gange aromatische Komponenten mit phenolischen Gruppen enthalten. Die Verwendung der Gange als Fullstoff in Hart-PVC-Compounds fuhrt zu Materialien mit guten mechanischen Eigenschaften, hoher Hitzeund chemischer Bestandigkeit und niedrigen Kosten.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"18 1","pages":"89-94"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77262568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Styrene‐divinylbenzene copolymers, V. Inhomogeneity in the structure and the average degree of swelling","authors":"O. Okay","doi":"10.1002/APMC.1987.051530109","DOIUrl":"https://doi.org/10.1002/APMC.1987.051530109","url":null,"abstract":"The compositional inhomogeneity and the average degree of swelling of heterogeneous styrene-divinylbenzene (S-DVB) copolymers were investigated using two morphological features of porous copolymers. At a fixed volume fraction of a nonsolvating diluent, the extent of inhomogeneous crosslinking increases with increasing DVB concentration. In addition, the crosslinking density of less crosslinked regions of the network decreases as the DVB concentration increases. The experimental results can be explained by the microgel-model of the network formation. The average degree of volume swelling can be predicted from the composition of the starting monomer mixture and from the porosity of the final copolymer dried from water. Depending on these parameters, the changes in the value of v2, the volume fraction of copolymer in the swollen gel, and the conditions for the pore stability are discussed. \u0000 \u0000 \u0000 \u0000Die Inhomogenitat in der Zusammensetzung und der mittlere Quellungsgrad von heterogenen Styrol-Divinylbenzol-Copolymeren (S-DVB) wurden mit Hilfe von zwei morphologischen Eigenschaften der porosen Copolymeren untersucht. Fur einen bestimmten Volumenbruch eines nicht-solvatisierenden Verdunnungsmittels steigt die Inhomogenitat mit zunehmender DVB-Konzentration an. Auserdem nimmt die Vernetzungsdichte der schwach vernetzten Bereiche des Netzwerkes mit zunehmender DVB-Konzentration ab. Die experimentellen Ergebnisse werden durch das Mikrogel-Modell fur die Netzwerk-Bildung erklart. Der mittlere Volumenquellungsgrad kann aus der Zusammensetzung des anfanglichen Monomerengemisches und aus der Porositat des getrockneten Copolymeren vorhergesagt werden. Die anderungen in v2, dem Volumenbruch des Polymeren im gequollenen Gel, und die Bedingungen fur die Poren-Stabilitat werden in Abhangigkeit von diesen Parametern diskutiert.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"17 1","pages":"125-134"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76136650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and properties of polyamine‐imides containing phenoxaphosphine units","authors":"P. Subramaniam, M. Srinivasan","doi":"10.1002/APMC.1987.051530107","DOIUrl":"https://doi.org/10.1002/APMC.1987.051530107","url":null,"abstract":"Polyamine-imides were synthesized by polycondensation reaction of bis-N-methyl-olimides and diamines. The reactions were carried out in the aprotic polar solvent dimethylacetamide (DMAc) and polymers with inherent viscosities ranging between 0.36–0.75 dl/g were obtained. The polymers were degraded by conc. H2SO4. All the polymers were characterized by elemental analysis, IR- and 1H-NMR spectroscopy, density, solubility, crystallinity, and thermal analysis. \u0000 \u0000 \u0000 \u0000Polyaminimide wurden durch Polykondensation von Bis-N-methylolimiden und Diaminen hergestellt. Die Reaktionen wurden in dem aprotischen Losungsmittel Dimethylacetamid (DMAc) durchgefuhrt, wodurch Polymere mit inherenten Viskositaten von 0,36–0,75 dl/g erhalten wurden. Die Polymeren wurden mit konz. H2SO4 abgebaut. Alle Polymere wurden durch Elementaranalyse, IR- und 1H-NMR-Spektroskopie, Dichte, Loslichkeit, Kristallinitat und durch Thermoanalyse charakterisiert.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"2 1","pages":"95-111"},"PeriodicalIF":0.0,"publicationDate":"1987-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85532399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Properties of the polyacrylic acid resin duolite es 346 containing amidoxime anchor groups with respect to the separation of uranium from sea water","authors":"K. Lieser, M. Erboy, B. Thybusch","doi":"10.1002/APMC.1987.051520115","DOIUrl":"https://doi.org/10.1002/APMC.1987.051520115","url":null,"abstract":"Loading curves, rate of exchange and distribution coefficients of Duolite ES 346 are determined for UO22+, Cu2+ and Fe3+, using simulated sea water. The crude resin gives off ammonia into solution which leads to precipitation of uranyl ions and high apparent distribution coefficients. With the purified resin the following distribution coefficients are measured at pH 8.1: Kd(UO22+) ≈ Kd(Cu2+) ≈ Kd(Fe3+) ≈ 0.6 · 104 ml/g. This leads to a loading of the resin in sea water of pH 8.1 with uranium only to about 20 μg per g of resin. \u0000 \u0000 \u0000 \u0000Die Beladungskurven, die Austauschgeschwindigkeit und die Verteilungskoeffizienten von Duolit ES 346 wurden unter Verwendung von simuliertem Meerwasser fur UO22+, Cu2+ und Fe3+ bestimmt. Das rohe Harz gibt Ammoniak in die Losung ab, was zur Ausfallung von Uranylionen und scheinbar hohen Verteilungskoeffizienten fuhrt. Fur das gereinigte Harz wurden die folgenden Verteilungskoeffizienten bei pH 8,1 gemessen: Kd(UO22+) ≈ Kd(Cu2+) ≈ Kd(Fe3+) ≈ 0,6 · 104 ml/g. Dies fuhrt zu einer Beladung des Harzes in Meerwasser vom pH 8,1 mit Uran bis etwa 20 μg pro g Harz.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"89 1","pages":"169-178"},"PeriodicalIF":0.0,"publicationDate":"1987-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83548810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiation grafting of hydrophilic monomers onto poly(4‐methylpentene‐1), II. Grafting of long chain monomers and physical properties of the grafted films","authors":"Y. S. Soebianto, F. Yoshii, K. Makuuchi, I. Ishigaki","doi":"10.1002/APMC.1987.051520114","DOIUrl":"https://doi.org/10.1002/APMC.1987.051520114","url":null,"abstract":"Radiation grafting of 2-hydroxyethyl methacrylate (HEMA) and methoxytetraethyleneglycol methacrylate (M4G) on low crystallinity poly(4-methylpentene-1) (TPX) has been investigated. Grafting yield increased with increasing pre-irradiation dose, grafting temperature, and monomer concentration. Grafting rate depends on length of molecular chain in the monomers and decreases with increasing chain length. The grafting yields of electron beam irradiated samples were higher than those of γ-irradiated ones because of higher radical concentration. Tensile strength of the grafted film in the dried state increased and the elongation at break decreased with increasing degree of grafting. On the other hand, in the wet state, the tensile strength and elongation at break decreased with increasing the degree of grafting due to the lack of hydrogen bonds between the grafted chains caused by increased water absorption. \u0000 \u0000 \u0000 \u0000Die strahleninduzierte Pfropfung von 2-Hydroxyethylmethacrylat (HEMA) und Methoxytetraethylenglycolmethacrylat (M4G) auf Poly(4-methylpenten-1) (TPX) wurde untersucht. Die Pfropfungsgrade erhohten sich mit zunehmender Vorbestrahlungsdosis, Pfropfungstemperatur und Monomerkonzentration. Die Pfropfungsgeschwindigkeit ist abhangig von der Kettenlange der Monomeren; sie nimmt mit wachsender Kettenlange ab. Bei Bestrahlen der Filme mit Elektronenstrahlen anstelle von γ-Strahlen waren die Pfropfungsgrade hoher. Die Zugfestigkeit der gepfropften Filme im trockenen Zustand stieg mit zunehmendem Pfropfungsgrad an, wahrend die Bruchdehnung abnahm. Dagegen nahmen die Zugfestigkeit und die Bruchdehnung im nassen Zustand mit wachsendem Pfropfungsgrad ab, da Wasserstoffbruckenbindungen zwischen den aufgepfropften Ketten durch die Wasseraufnahme der Filme fehlten.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"2 1","pages":"159-168"},"PeriodicalIF":0.0,"publicationDate":"1987-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80197674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of hydrophilic elastomers by radiation grafting","authors":"Y. S. Soebianto, F. Yoshii, K. Makuuchi, I. Ishigaki","doi":"10.1002/APMC.1987.051520113","DOIUrl":"https://doi.org/10.1002/APMC.1987.051520113","url":null,"abstract":"Radiation grafting of acrylic acid (AAc) onto ethylene-propylene rubber (EPR) to obtain hydrophilic elastomers has been investigated. It was found that by addition of alcohol (methanol and 1-propanol) into water as solvent for grafting the degree of grafting increased and formation of homopolymer was retarded. The grafting by addition of alcohol occurred even in deeper portions of the film compared with no addition of alcohol. Grafting rate differed largely with propylene contents in the EPR. Graft polymerization occurred easily in EPR of lower propylene contents such as 22%. Before introducing AAc in grafting the stability of EPR radicals of lower propylene contents was higher in comparison with other components. Water absorption of EPR increased linearly with increasing grafting yield. \u0000 \u0000 \u0000 \u0000Die strahleninduzierte Pfropfung von Acrylsaure auf Ethylen-Propylen-Kautschuk (EPR) wurde untersucht. Es wurde gefunden, das die Pfropfungsgrade bei Zugabe von Alkohol (Methanol und Isopropanol) abnahmen und die Bildung der Homopolymeren verzogert wurde. Bei Zugabe von Alkohol fand Pfropfung auch im Innern des Filmes statt. Die Pfropfungsgeschwindigkeit war sehr stark vom Propylengehalt im EPR abhangig. Die Pfropfungspolymerisation fand bei kleinen Propylengehalten, z. B. bei 22%, leichter statt. Die Stabilitat der Radikale mit niedrigeren Propylengehalten war hoher als die der anderen. Die Wasseraufnahme der gepfropften Filme stiegen linear mit dem Pfropfungsgrad an.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"60 1","pages":"149-158"},"PeriodicalIF":0.0,"publicationDate":"1987-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85096945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}