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The synthesis of block copolymers based on styrene analogues using a (Macro)-RAFT emulsion polymerization Author Neline van Loon ATGM Academie voor Technologie Gezondheid en Milieu Avans Hogeschool, Breda Lectoraat Biobased Products Sonny van Seeters The synthesis of block copolymers based on styrene analogues using a (Macro)-RAFT emulsion polymerization. Abstract The lectorate Biobased products is interested in replacing oil based monomers such as styrene in styrene analogues (4 - atoxystyrene, acetoxyl guaicol and acetoxy canolol) to make biobased polymers. The aim of this project is to make a block copolymer of styrene(analogues) and butyl acrylate in emulsion polymerisation using a Macro -RAFT agent. The problem with usual RAFT-agents is that there not soluble in water. There are three solutions for this problem (Figure 1). The first one is to use an emulsifying RAFT agent. The second solution is to use a Macro-RAFT agent. And the final solution is to force the RAFT agent in the loci by ultra-sonication (mini-emulsion). DSC and GPC are used to determine if a block copolymer is formed. Furthermore, conversion determination and kinetic studies are done to determine if there are RAFT conditions. It is expected that it is possible to replace styrene with styrene analogues and that it is possible to make a block copolymer by means of emulsion polymerization with an emulsifying RAFT agent or Macro-RAFT agent. The results up til now show that using 1 wt % RAFT-agent is not enough to gain RAFT conditions. Keywords: block copolymers, (Macro)-RAFT agent, emulsion polymerisation, styrene analogues. Table of content Figure 1: 1 = Emulsion polymerisation with emulsifying RAFT agent. 2 = Emulsion polymerisation with Macro-RAFT agent. 3 = Min-emulsion polymerisation. [1]: S.Compiet, Vergelijking tussen emulsie, mini-emulsie en RAFT mini-emulsie polymerisatie, Breda: Avans Hogeschool, 2017. 50
Biobased Block-Copolymers due ATRP Author Sanne van den Eijnde Academy of Technology for Health and Environment Avans Hogeschool, Breda Sonny van Seeters Abstract Biobased Block-Copolymers due ATRP Nowadays a lot of plastics are being used in daily life. Because block co -polymers[1] can have many different properties and applications a lot of research is being done at the moment. The polymers are commonly synthesized from monomers based on oil. In order to make polymers more environmentally friendly, in this study these block-co-polymers will be synthesized from biobased monomers that have been synthesized by the biobased lab. The aim of this research is to synthesize block co-polymers by using biobased monomers, which will mainly be styrene analogues. This will be done by means of the ATRP[2 ] polymerization technique with Ethyl α-bromoisobutyrate as initiator. Block-co-polymers are expected to be synthesized without random polymers between the two different blocks. A yield of around 65% is expected with conversions of 70%. It is also expected that a first order kinetics has taken place in the ATRP mechanism. First, a poly 4-acetoxyxtyrene[3] block was synthesized with Ethyl α-bromoisobutyrate as initiator, CuBr as catalyst and the ligand PMDETA was added. All this was done in the MEK as a solvent. Subsequently, the first block of 4- acetoxythyrene-Br was worked up and dissolved again in MEK, after which the block of butyl acrylate was coupled in the same way only 4-acetoxythyrene-Br acted as a macro-initiator. Keywords: Block co-polymers, ATRP, 4-acetoxystyrene Table of content Figure 1: Reactie 4-acetoxystyreen naar poly 4-acetoxystyreen [ 1]. [1] T. Zoontjens, „Atom transfer radical polymerization,” Breda, 2017. [2] T. K. X.-y. L. M.-q. C. Man HUA1 en y, „Successful ATRP Syntheses of Amphiphilic Block Copolymers Poly (styrene-block- N,N-dimethylacrylamide) and Their Self-assembly,” School of Chemical and Material Engineering, Southern Yangtze University, Osaka, Japan, 2005. [3] H. Bergenudd, „UNDERSTANDING THE MECHANISMS BEHIND ATOM TRANSFER RADICAL POLYMERIZATION – EXPLORING THE LIMIT OF CONTROL,” Elsevier, Amerika, 2011 . 51
Page 1 and 2: Book of Abstracts Poster presentati
Page 3 and 4: Avans University of Applied Science
Page 5 and 6: Collaborations 5
Page 7 and 8: Preface Dear reader, We present her
Page 9 and 10: Index SPOC1 13 Tutor: Nishant Sewgo
Page 11 and 12: Group index SPOC1 The inhibition of
Page 13 and 14: The inhibition of the Pseudomonas A
Page 15 and 16: Synthesis of a surface-active RAFT-
Page 17 and 18: Synthesis for a building block for
Page 19 and 20: 19
Page 21 and 22: Group index SPOC2 In situ catalysed
Page 23 and 24: Book of abstracts SPOC 2018 3,4-uns
Page 25 and 26: Determination of activation energie
Page 27 and 28: Book of abstracts SPOC 2018 Synthes
Page 29 and 30: Group index SPOC3 Decarboxylation o
Page 31 and 32: Decarboxylation of ferulic acid to
Page 37 and 38: Group index SPOC4 The kinetics of t
Page 39 and 40: The kinetics of the Knoevenagel con
Page 41 and 42: Isolation of catalytic intermediate
Page 43 and 44: Chemical recycling to Oxazolines Au
Page 45 and 46: Group index SPOC5 Molecular Imprint
Page 47 and 48: Taxus extract Molecular Imprinted P
Page 49: MIP synthesis of 4-vinylpyridine Au
Page 53 and 54: 53
Page 55 and 56: Group index SPOC6 Synthesis of Beta
Page 57 and 58: Synthesis of Beta-lactam in three s
Page 59 and 60: Isoxazoline ring opening by TBAT to
Page 61 and 62: Synthesis of a ligand for a synthet
Page 63 and 64: Group index SPOC7 Synthesis of a te
Page 67 and 68: Synthesis of a terpyridine ligand f
Page 69 and 70: Synthesis of peptides for IR foldin
Page 71 and 72: Peptide synthesis for unravelling p
Page 73 and 74: Dear reader, Acknowledgement s Afte

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