Styrene-acrylonitrile-glycidyl

SANGMA Styrene-acrylonitrile-glycidyl methacrylate copolymer... 

After the formulas for rate constants are known, any diad sequence distribution can be calculated in the copolymer with an unknown composition from the dimer yields. The procedure has been studied for several copolymers including poly(acrylonitrile-co-m-chlorostyrene) [17], poly(styrene-co-glycidyl methacrylate) [19], poly(acrylonitrile-co-p-chlorostyrene) [17], poly(styrene-co-methacrylate) [20], poly(styrene-co-p-chlorostyrene) [18], and for other copolymers [14, 21-29]. 

PP poly(propylene), PS poly(styrene), MAH maleic anhydride, MA methacrylic acid, S styrene, PE poly(ethylene), PPE poly(phenylene ether), LDPE low-density PE, EPDM ethylene-propylene-diene terpolymer, SAN styrene-acrylonitrile copolymer, EPR ethylene-propylene copolymer, NMAC A -methacrylyl caprolactam, GMA glycidyl methacrylate, FA fumaric acid, AEFO anhydride and epoxide functionalized olefin copolymer, SEBS styrene/ethylene-butylene/styrene copolymer, HDPE high-density PE, AN acrylonitrile, and S-MAH-MMA styrene-maleic anhydride-methyl methacrylate copolymer. 

Dow has prepared a compatibilized blend of PC and linear PE. The compati-bilizer used was EPDM grafted with SAN. The product has high impact strength and good melt processability. Polymer alloys with S-AMS copolymer and PP with styrene-grafted polyolefin copolymer have been reported. Triax 1000 of Monsanto is a blend of nylon and ABS compatibilized with styrene-acrylonitrile and glycidyl methacrylate terpolymer. The compatibilizer often improves the property balance of an immiscible blend. Reactive compatibilization is an emerging technique. 

Other applications of IR spectroscopy in copolymer characterisation include styrene-glycidyl-p-isopropenylphenyl ether copolymers [4], styrene-isobutylene copolymers [5], vinyl chloride - vinyl acetate - vinyl fluoride terpolymers [6], vinylchloride - vinyl acetate copolymers [7], styrene copolymers [8], ethylene-vinyl acetate copolymers [9], graft copolymers, and butadiene-styrene [10] and acrylonitrile - styrene copolymers [11], polyurethane - polyacrylate [12], polymethylmethacrylate grafted high alpha cellulose [13], bisphenol-polycarbonate (PC) [14], bromobutyl isoprene [15], styrene - methacrylonitrile (SMAN) [16, 17] and styrene - acrylonitrile [18]. 

Resin and Polymer Solvent. Dimethylacetamide is an exceUent solvent for synthetic and natural resins. It readily dissolves vinyl polymers, acrylates, ceUulose derivatives, styrene polymers, and linear polyesters. Because of its high polarity, DMAC has been found particularly useful as a solvent for polyacrylonitrile, its copolymers, and interpolymers. Copolymers containing at least 85% acrylonitrile dissolve ia DMAC to form solutions suitable for the production of films and yams (9). DMAC is reportedly an exceUent solvent for the copolymers of acrylonitrile and vinyl formate (10), vinylpyridine (11), or aUyl glycidyl ether (12). 

Acrylonitrile-styrene-acrylate terpolymers, known as either ASA or AAS, constitute another class of ABS resins, viz. Centrex , Luran S, Richform , etc. These materials may also contain reactive groups, viz. maleic anhydride or glycidyl methacrylate. 

Acronyms Tg - glass transition temperature. DGEBA = diglycidyl ether of bisphenoSA, MPD = m-phenylene diamine, DCD dicyandiamide, DACH = diaminocycbhexane. DDS = diaminodiphenyl sulfone, PIP = piperidine, IPD = ist orone diamine, AEP = aminoetiiyl piperazine, BA = n-butyl acrylate, B = butadiene, S styrene, MMA methyl methacrylate, AN acrylonitrile, GMA glycidyl methacrylate, DVB divinyl benzene, EA = ethyl acrylate. 

To prepare polyolefin blends, PO (e.g., EVAc, PE, PP, EPR), with vinyl polymers, 10-200 parts of vinyl monomer [e.g., (meth)acrylates, styrenics, vinyl chloride, glycidyl methacrylate, maleic anhydride, acrylonitrile, divinylbenzene] and 0.01-4.0 parts of a free radical initiator were used to impregnate 100 parts of PO particles at T = 20-130 °C. After 50-99 wt% of the monomer was absorbed, the particles were dispersed in water and the free radical polymerization initiated. Good adhesion between the components in the extruded or molded articles was achieved... 

Glycidyl methacrylate Acrylonitrile-co-styrene Single Tg II had 32.3-58.8 wt% AN Gan and Paul (1994b)... 

Styrene and acrylonitrile copolymer Styrene, butadiene and styrene copolymer Styrene, ethylene, butylenes and styrene copolymer Styrene, ethylene, butylenes and styrene copolymer grafted with glycidyl methacrylate Styrene, ethylene, butylenes and styrene copolymer grafted with maleic anhydride Styrene maleic anhydride Syndiotactic polystyrene... 

Preformed particles are incorporated into the epoxy matrix by simple mechanical mixing. The dispersibility of the particles can be improved by 1) introducing crosslinking into the shell or 2) using comonomer-like acrylonitrile or GMA, which increases the interfacial adhesion by polar or chemical interaction [96, 97]. Quan and co-workers [98] reported that for poly (butadiene-co-styrene) core poly (methyl methacrylate) (PMMA) shell particles, the cluster size reduces from 3-5 pm to 1-3 pm as a result of using 5 wt% crosslinker (divinyl benzene). They also found that the cluster size could be further reduced to 1-2 pm by using a methyl methacrylate-acrylonitrile (MMA-AN) or methyl methacrylate-glycidyl methacrylate (MMA-GMA) copolymer shell composition. 

Polymer alloys made of nylon and ABS engineering thermoplastic were sold by Monsanto under the name of Triax 1000. The compatibilizer used was a terpolymer of styrene and acrylonitrile and glycidyl methacrylate. The effect of the compatibilizer... 

Particular studies of the IR spectra of polymers include isotactic poly(l-pentane), poly(4-methyl-l-pentene), and atactic poly(4-methyl-pentene) [18], chlorinated PE [19], aromatic polymers including styrene, terephthalic acid, isophthalic acid [20], PS [21, 22], styrene-glycidyl-p-isopropenylphenyl ether copolymers [23], styrene-isobutylene copolymers [24], vinyl chloride-vinyl acetate-vinyl fluoride terpolymers [25], vinyl chloride-vinyl acetate copolymers [26], styrene copolymers [27], ethylene-vinyl acetate copolymers, graft copolymers, and butadiene-styrene [28] and acrylonitrile-styrene copolymers [29]. 

Styrene/a-methyl styrene Styrene/(halogenated styrene) Styrene/(halogenated styrene) a-methylstyrene/acrylonitrile a-methylstyrene/methacrylonitrile Butadiene/acrylonitrile Butadiene/acrylonitrile (methyl methacrylate)/(alkyl methacrylates) (methyl methacrylate)/esters (glycidyl methacrylate)/(ethyl acrylate) (ethylene terephthalate)/oxybenzoate (ethyl acrylate)/(4-vinyl pyridine) Ethylene/(vinyl acetate)... 

The term acrylic apphes to a family of copolymers of monomers that are polymerized by a chain growth mechanism. Most often, the mechanism of polymerization is by free radical initiation. Other mechanisms of polymerization, such as ionic and group transfer polymerization, are possible but will not be discussed in this publication. For a description of other polymerization mechanisms, polymer textbooks are available (5,6). Technically, acrylic monomers are derivatives of acrylic or methacrylic acid. These derivatives are nonfunctional esters (methyl methacrylate, butyl acrylate, etc.), amides (acrylamide), nitrile (acrylonitrile), and esters that contain functional groups (hydroxyethyl acrylate, glycidyl methacrylate, dimethylaminoethyl acrylate). Other monomers that are not acryhc derivatives are often included as components of acryhc resins because they are readily copolymerized with the acryhc derivatives. Styrene is often used in significant quantities in acryhc copolymers. 

Glycidyl m acrylate Acrylonitrile-co-styrene Single Tg 1,3-propylene adipate (2 miscible blend systems) II had 323-58.8 wt% AN 1007... 

We examined the homopolymerizations and copolymerizations of styrene (St), methyl methacrylate (MMA), acrylonitrile (AN), a functional styrene, i.e., p-aminostyrene (ASt), and functional methacrylates, i.e., 2-ethyhexyl (EHMA), benzyl (BzMA), phenyl (POMA), glycidyl (GMA), 2-hydroxyethyl (HEMA), poly(ethylene glycol) methyl ether (PEGMA), and A,A-dimethylaminoethyl (DMAEMA) methacrylates as well as methacrylic acid (MAA) (Figure 7.2), for example, by using several catalysts. The results will be summarized below. 

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