Designing novel polymers for solid-state nuclear track detection (SSNTD), I: novel homo- and co-polymers with allyl diglycol carbonate from N-allyloxycarbonyl diethanolamine-bis(allylcarbonate)

Abstract

Abstract-A novel monomer, N-allyloxycarbonyl diethanolamine-bis(allylcarbonate), has been synthesized and cast-polymerized for the first time to obtain poly-[N-allyloxycarbonyl diethanolaminebis(allylcarbonate)] (PNADAC), which was used successfully as a solid-state nuclear track detector for alpha particles and fission fragments. The monomer has been synthesized from diethanolamine by reacting allyl chloroformate in a one-step process. The kinetics of its polymerization reactions were studied. A co-polymer with allyl diglycol carbonate (ADC) was also prepared after studying the kinetics of the polymerization reaction. It was found that the homo-and co-polymers are more sensitive towards alpha particles as compared to the commercially available CR-39 ™ track detector.

Designing polymers for nuclear track detection

“…All the unbranched monomers [1][2][3][4][5] containing two identical radiation sensitive group like carbonate, sulphonate or sulphite have a functionality of four and were synthesized as shown in Scheme 1. Branched monomers [6][7][8][9] with higher functionality ranging from two to eight and containing more than two radiation sensitive groups like nitrate, nitro, carbamate, carbonate were used as shown in Schem 2, to prepare polymers so that more and more dense, 3D network of cross links is formed. Table 1 summarizes some important characteristics of these monomers from polymerization point of view.…”

Poly(triallyl phosphate) and its copolymers with allyl diglycol carbonate as solid state nuclear track detectors.

“…The yield of triallyl phosphate was found out to be 87%. The product formed was characterized by infrared spectrum and 1 H, 13 of the polymer films is experimentally determined using Wij's method for unsaturation analysis. [23] Homopolymer and different copolymers with allyl diglycol carbonate prepared above were tested for track detection characteristics.…”

“…[13][14][15][16][17][18] Interestingly, no polymeric nuclear track detectors containing phosphate functionality are reported so far. We, now report for the first time such phosphate and phosphate-carbonate containing polymeric detectors for nuclear track detection.…”

“…We, now report for the first time such phosphate and phosphate-carbonate containing polymeric detectors for nuclear track detection. We have earlier studied the use of branched monomers like Poly-[N-allyloxycarbonyl diethanolamine-bis(allylcarbonate)] (NADAC), [13] Tris-(2,4-dioxa-3-oxohept-6-en-1-yl)nitromethane, (TDONM), [16] pentaerythritol tetrakis(allyl carbonate) (PETAC) [17] and observed that the polymers derived from them tend to show better radiation sensitivity mainly owing to formation of a denser cross-linked network. We, therefore, decided to use a hexafunctional branched monomer like triallyl phosphate in our present study.…”

Synthetically Induced 1→4‐C Branching Motif ‐ An Access Towards Dense Urethane Connecting Dendritic Scaffolds and Application in Nuclear Track Detection

“…To date, CR‐39™ or poly (allyl diglycol carbonate) (PADC) polymer is the only plastic widely used as reference track detector. Particularly, polymer matrix with urethane connectivity's shown an increase in sensitivity of material towards charged particles, thus proving a promising track detector compared to reference material.…”