PMID- 27816439
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180306
LR  - 20180306
IS  - 1873-2828 (Electronic)
IS  - 1350-4177 (Linking)
VI  - 35
IP  - Pt A
DP  - 2017 Mar
TI  - Synergistic effect of ultrasonication and phase transfer catalysts in radical 
      polymerization of methyl methacrylate - A kinetic study.
PG  - 333-341
LID - S1350-4177(16)30350-9 [pii]
LID - 10.1016/j.ultsonch.2016.10.011 [doi]
AB  - Methyl methacrylate (MMA) has been polymerized to poly methyl methacrylate (PMMA) 
      by employing three different phase transfer catalysts (PTC) such as 
      1,4-bis(dimethylhexyl)ethylenediammoniumbromide (DMHEDAB), 
      1,4bis(dimethylheptyl)ethylenediammoniumbromide (DMH1EDAB) and 
      1,4-bis(dimethyloctyl)ethylenediammonium bromide (DMOEDAB) under the influence of 
      ultrasound radiation. The radical polymerization was performed under unstirred 
      condition at a temperature of 60+/-1 degrees C in an oxygen free atmosphere employing water 
      soluble K(2)S(2)O(8) as initiator. Various parameters such as role of [Monomer], 
      [Initiator], [PTC], solvent and temperature were investigated on rate of 
      polymerization (Rp) and the synergic efficacy of ultrasound wave variation and 
      phase transfer catalysts were also assessed. It was found that the rate of 
      polymerization (Rp) increased drastically for all the three catalyst under the 
      influence of ultrasound and the order of efficiency was found to be [Formula: see 
      text] This increase may be due to the number of carbon chain attached to the 
      polar group which facilitate and accelerate the rate of polymerization.
CI  - Copyright A(c) 2016 Elsevier B.V. All rights reserved.
FAU - Prabha, J
AU  - Prabha J
AD  - Department of Chemistry, College of Engineering, Anna University, Tamil Nadu, 
      India. Electronic address: prabhaj78@gmail.com.
FAU - Susan Jemima, W
AU  - Susan Jemima W
AD  - Department of Chemistry, College of Engineering, Anna University, Tamil Nadu, 
      India. Electronic address: susanjemima@gmail.com.
FAU - Jayaprada, M
AU  - Jayaprada M
AD  - Department of Chemistry, College of Engineering, Anna University, Tamil Nadu, 
      India. Electronic address: jprdmn@gmail.com.
FAU - Umapathy, M J
AU  - Umapathy MJ
AD  - Department of Chemistry, College of Engineering, Anna University, Tamil Nadu, 
      India. Electronic address: mj_umapathy@yahoo.co.in.
LA  - eng
PT  - Journal Article
DEP - 20161018
PL  - Netherlands
TA  - Ultrason Sonochem
JT  - Ultrasonics sonochemistry
JID - 9433356
OTO - NOTNLM
OT  - Free radical polymerization
OT  - Methyl methacrylate
OT  - Ultrasound and quaternary ammonium salts
EDAT- 2016/11/07 06:00
MHDA- 2016/11/07 06:01
CRDT- 2016/11/07 06:00
PHST- 2016/08/08 00:00 [received]
PHST- 2016/09/30 00:00 [revised]
PHST- 2016/10/13 00:00 [accepted]
PHST- 2016/11/07 06:00 [pubmed]
PHST- 2016/11/07 06:01 [medline]
PHST- 2016/11/07 06:00 [entrez]
AID - S1350-4177(16)30350-9 [pii]
AID - 10.1016/j.ultsonch.2016.10.011 [doi]
PST - ppublish
SO  - Ultrason Sonochem. 2017 Mar;35(Pt A):333-341. doi: 
      10.1016/j.ultsonch.2016.10.011. Epub 2016 Oct 18.